Finding the Third Proportional to 550,662 and 836,469

Step by Step Solution

1. Step 1: Write the proportion equation
   550,662 : 836,469 = 836,469 : x
2. Step 2: Convert to fraction form
   550,662/836,469 = 836,469/x
3. Step 3: Cross multiply
   550,662x = 836,469 × 836,469
4. Step 4: Simplify right side
   550,662x = 699,680,387,961
5. Step 5: Solve for x
   x = 699,680,387,961/550,662
6. Step 6: Final answer
   x = 1,270,616.80