Factor $36000=60^{2}\times 10$. Rewrite the square root of the product $\sqrt{60^{2}\times 10}$ as the product of square roots $\sqrt{60^{2}}\sqrt{10}$. Take the square root of $60^{2}$.
$$\frac{60\sqrt{10}}{0.04\times 3}$$
Multiply $0.04$ and $3$ to get $0.12$.
$$\frac{60\sqrt{10}}{0.12}$$
Divide $60\sqrt{10}$ by $0.12$ to get $500\sqrt{10}$.
