Finding the Third Proportional to 124,123.50 and 267,931.50

Step by Step Solution

1. Step 1: Write the proportion equation
   124,123.50 : 267,931.50 = 267,931.50 : x
2. Step 2: Convert to fraction form
   124,123.50/267,931.50 = 267,931.50/x
3. Step 3: Cross multiply
   124,123.50x = 267,931.50 × 267,931.50
4. Step 4: Simplify right side
   124,123.50x = 71,787,288,692.25
5. Step 5: Solve for x
   x = 71,787,288,692.25/124,123.50
6. Step 6: Final answer
   x = 578,353.73