Finding the Third Proportional to 428,937 and 847,105.50

Step by Step Solution

1. Step 1: Write the proportion equation
   428,937 : 847,105.50 = 847,105.50 : x
2. Step 2: Convert to fraction form
   428,937/847,105.50 = 847,105.50/x
3. Step 3: Cross multiply
   428,937x = 847,105.50 × 847,105.50
4. Step 4: Simplify right side
   428,937x = 717,587,728,130.25
5. Step 5: Solve for x
   x = 717,587,728,130.25/428,937
6. Step 6: Final answer
   x = 1,672,944.34