Finding the Third Proportional to 1,605,864 and 2,489,472

Step by Step Solution

1. Step 1: Write the proportion equation
   1,605,864 : 2,489,472 = 2,489,472 : x
2. Step 2: Convert to fraction form
   1,605,864/2,489,472 = 2,489,472/x
3. Step 3: Cross multiply
   1,605,864x = 2,489,472 × 2,489,472
4. Step 4: Simplify right side
   1,605,864x = 6,197,470,838,784
5. Step 5: Solve for x
   x = 6,197,470,838,784/1,605,864
6. Step 6: Final answer
   x = 3,859,275.03