Question

# ln (ln x) = 2

Logarithms
$$\displaystyle{\ln{{\left({\ln{{x}}}\right)}}}={2}$$

We are given: $$\displaystyle{\ln{{\left({\ln{{x}}}\right)}}}={2}$$
Write in exponential form: $$\displaystyle{\ln{{x}}}={a}\to{e}^{{2}}={x}$$
Write in exponential form again: $$e^{e^2}=x$$
$$x=e^{e^2}\sim{1618.178}$$