Finding the Third Proportional to 812,792 and 1,786,470

Step by Step Solution

1. Step 1: Write the proportion equation
   812,792 : 1,786,470 = 1,786,470 : x
2. Step 2: Convert to fraction form
   812,792/1,786,470 = 1,786,470/x
3. Step 3: Cross multiply
   812,792x = 1,786,470 × 1,786,470
4. Step 4: Simplify right side
   812,792x = 3,191,475,060,900
5. Step 5: Solve for x
   x = 3,191,475,060,900/812,792
6. Step 6: Final answer
   x = 3,926,558.16