Finding the Third Proportional to 123,403.78 and 267,046.88

Step by Step Solution

1. Step 1: Write the proportion equation
   123,403.78 : 267,046.88 = 267,046.88 : x
2. Step 2: Convert to fraction form
   123,403.78/267,046.88 = 267,046.88/x
3. Step 3: Cross multiply
   123,403.78x = 267,046.88 × 267,046.88
4. Step 4: Simplify right side
   123,403.78x = 71,314,033,447.27
5. Step 5: Solve for x
   x = 71,314,033,447.27/123,403.78
6. Step 6: Final answer
   x = 577,891.80