Finding the Third Proportional to 120,454.50 and 254,472

Step by Step Solution

1. Step 1: Write the proportion equation
   120,454.50 : 254,472 = 254,472 : x
2. Step 2: Convert to fraction form
   120,454.50/254,472 = 254,472/x
3. Step 3: Cross multiply
   120,454.50x = 254,472 × 254,472
4. Step 4: Simplify right side
   120,454.50x = 64,755,998,784
5. Step 5: Solve for x
   x = 64,755,998,784/120,454.50
6. Step 6: Final answer
   x = 537,597.17