Finding the Third Proportional to 469,861 and 715,807.50

Step by Step Solution

1. Step 1: Write the proportion equation
   469,861 : 715,807.50 = 715,807.50 : x
2. Step 2: Convert to fraction form
   469,861/715,807.50 = 715,807.50/x
3. Step 3: Cross multiply
   469,861x = 715,807.50 × 715,807.50
4. Step 4: Simplify right side
   469,861x = 512,380,377,056.25
5. Step 5: Solve for x
   x = 512,380,377,056.25/469,861
6. Step 6: Final answer
   x = 1,090,493.52