Now on to the puzzle: Remember your order of operations, and symbols have meaning.
5 x 103 + (5.45 x 102)
7! / 2 + (17 x 7) + (17 x 3)
Now replace the last digits of the posted coordinates with your new numbers There is no geo-checker so do your calculations carefully. Check your solution by looking on a map. Are you on a quiet county road near a tributary to the Olentangy River? Cache is approximately 1.0 miles from posted coordinates. Easy parking west of GZ.