Finding the Third Proportional to 550,705.50 and 857,469

Step by Step Solution

1. Step 1: Write the proportion equation
   550,705.50 : 857,469 = 857,469 : x
2. Step 2: Convert to fraction form
   550,705.50/857,469 = 857,469/x
3. Step 3: Cross multiply
   550,705.50x = 857,469 × 857,469
4. Step 4: Simplify right side
   550,705.50x = 735,253,085,961
5. Step 5: Solve for x
   x = 735,253,085,961/550,705.50
6. Step 6: Final answer
   x = 1,335,111.21