The current flowing through a conductor connected across a source is $2 \mathrm{~A}$ and 1.2 $\mathrm{A}$ at $0^{\circ} \mathrm{C}$ and $100^{\circ} \mathrm{C}$ respectively. The current flowing through the conductor at $50^{\circ} \mathrm{C}$ will be ___________ $\times 10^{2} \mathrm{~mA}$.