Finding the Third Proportional to 529,704 and 810,472.50

Step by Step Solution

1. Step 1: Write the proportion equation
   529,704 : 810,472.50 = 810,472.50 : x
2. Step 2: Convert to fraction form
   529,704/810,472.50 = 810,472.50/x
3. Step 3: Cross multiply
   529,704x = 810,472.50 × 810,472.50
4. Step 4: Simplify right side
   529,704x = 656,865,673,256.25
5. Step 5: Solve for x
   x = 656,865,673,256.25/529,704
6. Step 6: Final answer
   x = 1,240,061.76