This is the second in a series of five puzzle caches hidden around the village of Kalithies. The given coordinates are not where you'll find the cache. To find the cache, you'll have to solve the following puzzle:
A farmer had a large fenced rectangular field that he decided was the perfect place to keep his two goats, Hilda and Helga. He measured out two lengths of rope; the first was the same length as one of the shorter sides of the field and the second was 1/3 of the length of the first. He tied both ropes to Hilda’s collar and then he tied the other end of the longer rope to a fence post which was midway along one of the shorter edges of the field, and he attached the other end of the shorter rope to Helga’s collar.
In this way, Hilda was able to eat the grass in exactly 10.5 hectares of the field, and Helga could (if she tugged hard enough on Hilda) just manage to reach the whole field.
You will find the cache at N36 19.XXX E28 09.YYYwhere XXX and YYY are the lengths (in metres to the nearest metre) of the long side and the short side of the farmer’s field, respectively.
The cache is the size of a drink can and contains a log book and plenty of space for tradeable items, though you will need to bring your own pen.
Good luck!
W (a.k.a. DidianRay)
You can validate your puzzle solution with certitude.
Special thanks to aliasmom for testing the solution to this puzzle before publishing