No. 999,999,999 gil is the cap, about 10 times as much. 100Mil is just a lot of gold coins. 100 million gold coins, to be exact. Let's assume that each coin is about the size of a quarter:
A US Quarter has a diameter of 24.26mm, or 2.426 cm
It has a thickness of 1.75mm, or 0.175 cm.
Let's now assume that this is flush, so the volume of one US Quarter is:
(pi) * (1.213cm)^2 * 0.175cm = 0.808 cm^3
Multiply that by 100,000,000, or the number of Gil coins that you have, and you get:
80,800,000 cm^3
1 Liter is 1000 cm^3, so this translates to:
80,800 Liters.
100,000,000 Gil could fill an 81,000 Liter pool. That's approximately 21,300 Gallons.
I'd say you'd need more than a pile...
