Or now that I've gotten #1 as well I'm just going to turn in my answers based on what you've posted.
- "THE THINGS YOU OWN END UP OWNING YOU" - Brad Pitt (as Tyler Durden) in Fight Club
2a. 642,500.08 m
2b. sqrt(1156248400.0064) m, or about 34,003.65274056669... m (32,500 m south and 9,999.92 m east of the starting point)
You win! I have already transferred the money to your account. You can find the new problems here.