Determine the current flowing through the diode D$3($from anode to cathode$)$ in the circuit below using the constant voltage drop model with $V_{On}=0\mathrm{.}65V,$ where $R_1=12\mathrm{.}30k,R_2=15\mathrm{.}80k,$ and $R_3=1\mathrm{.}500k.($Round the final answers to three decimal places.$)$

Current flowing through the diode D$3=$ mA$.$

Hint: First, hpothesize that the diode D$2$ is not conducting. You can verify if that hypothesis is true at the end of the calculations.