Finding the Third Proportional to 708,315 and 1,052,428.50

Step by Step Solution

1. Step 1: Write the proportion equation
   708,315 : 1,052,428.50 = 1,052,428.50 : x
2. Step 2: Convert to fraction form
   708,315/1,052,428.50 = 1,052,428.50/x
3. Step 3: Cross multiply
   708,315x = 1,052,428.50 × 1,052,428.50
4. Step 4: Simplify right side
   708,315x = 1,107,605,747,612.25
5. Step 5: Solve for x
   x = 1,107,605,747,612.25/708,315
6. Step 6: Final answer
   x = 1,563,719.18