Raiders of the Lost Cache Mystery Cache

Do you remember "Indiana Jones and the Raiders of the Lost Ark?" And do you remember the scene in the map-room where Indy uses an emerald on a stick and the sunshine through the hole in the map-room wall to focus on the location of the treasure? Well, you'll have to do similar calcs... Here's what you need to know:

1. The Hole in the wall is 478cm above the ground.
2. The pole is 561cm away from the wall
3. The height of the emerald on the pole from the ground is 250cm
4. Calculate distance from the base of the pole to the beam of light hitting the ground. This is HHH (Truncate decimals).
5. The height of the hole doubled gives you VVV.
6. The cache will be found at S25° 48.VVV E28° 17.HHH.