Triple integral of x² sin(y) with nested bounds

[Nat3]

Homework Statement

$$\int _0^{\sqrt{\pi }}\int _0^x\int _0^{x z}x^2 \text{Sin}[y]dydzdx$$

 

[Char. Limit]

And have you tried anything? I'd start by evaluating that integral wrt y. It should be reasonably straightforward.