A three-phase overhead transmission line is designed to deliver 190.5 MVA at \(220 \mathrm{kV}\) over a distance of \(63 \mathrm{~km}\), such that the total transmission line loss is not to exceed \(2.5 \%\) of the rated line MVA. Given the resistivity of the conductor material to be \(2.84 \times 10^{-8} \Omega-\mathrm{m}\), determine the required conductor diameter and the conductor size in circular mils. Neglect power losses due to insulator leakage currents and corona.