Finding the Third Proportional to 284,434.50 and 656,815.50

Step by Step Solution

1. Step 1: Write the proportion equation
   284,434.50 : 656,815.50 = 656,815.50 : x
2. Step 2: Convert to fraction form
   284,434.50/656,815.50 = 656,815.50/x
3. Step 3: Cross multiply
   284,434.50x = 656,815.50 × 656,815.50
4. Step 4: Simplify right side
   284,434.50x = 431,406,601,040.25
5. Step 5: Solve for x
   x = 431,406,601,040.25/284,434.50
6. Step 6: Final answer
   x = 1,516,716.86