\( \Large x^{2} - 365 = 364 \)

=>\( \Large x^{2} = 364 + 365 \)

Therefore, \( \Large x = \sqrt{729} = \pm 27 \)

and \( \Large y - \sqrt{324} = \sqrt{81} => y - 18 = 9 \)

Therefore, y = 27

So, \( \Large y\ge x \  or \  x \le y \) because y = 27 and x = -27 and x = 27