Finding the Third Proportional to 812,790 and 1,786,466

Step by Step Solution

1. Step 1: Write the proportion equation
   812,790 : 1,786,466 = 1,786,466 : x
2. Step 2: Convert to fraction form
   812,790/1,786,466 = 1,786,466/x
3. Step 3: Cross multiply
   812,790x = 1,786,466 × 1,786,466
4. Step 4: Simplify right side
   812,790x = 3,191,460,769,156
5. Step 5: Solve for x
   x = 3,191,460,769,156/812,790
6. Step 6: Final answer
   x = 3,926,550.24