\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
A geometric sequence is defined by its first term \(u_1 = 3\) and a common ratio \(r = 4\).
Calculate the 10\(^{\text{th}}\) term of this sequence, \(u_{10}\).
\(u_{10}=\)