Finding the Third Proportional to 638,185.50 and 944,676

Step by Step Solution

1. Step 1: Write the proportion equation
   638,185.50 : 944,676 = 944,676 : x
2. Step 2: Convert to fraction form
   638,185.50/944,676 = 944,676/x
3. Step 3: Cross multiply
   638,185.50x = 944,676 × 944,676
4. Step 4: Simplify right side
   638,185.50x = 892,412,744,976
5. Step 5: Solve for x
   x = 892,412,744,976/638,185.50
6. Step 6: Final answer
   x = 1,398,359.48