Finding the Third Proportional to 590,469 and 916,807.50

Step by Step Solution

1. Step 1: Write the proportion equation
   590,469 : 916,807.50 = 916,807.50 : x
2. Step 2: Convert to fraction form
   590,469/916,807.50 = 916,807.50/x
3. Step 3: Cross multiply
   590,469x = 916,807.50 × 916,807.50
4. Step 4: Simplify right side
   590,469x = 840,535,992,056.25
5. Step 5: Solve for x
   x = 840,535,992,056.25/590,469
6. Step 6: Final answer
   x = 1,423,505.71