Finding the Third Proportional to 124,498.50 and 267,139.50

Step by Step Solution

1. Step 1: Write the proportion equation
   124,498.50 : 267,139.50 = 267,139.50 : x
2. Step 2: Convert to fraction form
   124,498.50/267,139.50 = 267,139.50/x
3. Step 3: Cross multiply
   124,498.50x = 267,139.50 × 267,139.50
4. Step 4: Simplify right side
   124,498.50x = 71,363,512,460.25
5. Step 5: Solve for x
   x = 71,363,512,460.25/124,498.50
6. Step 6: Final answer
   x = 573,207.81