Finding the Third Proportional to 124,558.50 and 272,499

Step by Step Solution

1. Step 1: Write the proportion equation
   124,558.50 : 272,499 = 272,499 : x
2. Step 2: Convert to fraction form
   124,558.50/272,499 = 272,499/x
3. Step 3: Cross multiply
   124,558.50x = 272,499 × 272,499
4. Step 4: Simplify right side
   124,558.50x = 74,255,705,001
5. Step 5: Solve for x
   x = 74,255,705,001/124,558.50
6. Step 6: Final answer
   x = 596,151.25