Answer
See explanation.
Work Step by Step
Assume the size of the pile is 45 cm wide and deep, and 180 cm tall.
The volume of the pile is $V=364500\;cm^3$.
The mass of the pile is $M = V \times \frac{19.3 g}{cm^3}$.
The value of the pile is $M \times \frac{\$10}{g}=\$7\times10^7$, almost a hundred million bucks.
