Finding the Third Proportional to 708,606.56 and 729,018.56

Step by Step Solution

1. Step 1: Write the proportion equation
   708,606.56 : 729,018.56 = 729,018.56 : x
2. Step 2: Convert to fraction form
   708,606.56/729,018.56 = 729,018.56/x
3. Step 3: Cross multiply
   708,606.56x = 729,018.56 × 729,018.56
4. Step 4: Simplify right side
   708,606.56x = 531,468,064,469.57
5. Step 5: Solve for x
   x = 531,468,064,469.57/708,606.56
6. Step 6: Final answer
   x = 750,018.55