Finding the Third Proportional to 124,615.50 and 274,150.50

Step by Step Solution

1. Step 1: Write the proportion equation
   124,615.50 : 274,150.50 = 274,150.50 : x
2. Step 2: Convert to fraction form
   124,615.50/274,150.50 = 274,150.50/x
3. Step 3: Cross multiply
   124,615.50x = 274,150.50 × 274,150.50
4. Step 4: Simplify right side
   124,615.50x = 75,158,496,650.25
5. Step 5: Solve for x
   x = 75,158,496,650.25/124,615.50
6. Step 6: Final answer
   x = 603,123.18