Finding the Third Proportional to 124,140 and 267,960

Step by Step Solution

1. Step 1: Write the proportion equation
   124,140 : 267,960 = 267,960 : x
2. Step 2: Convert to fraction form
   124,140/267,960 = 267,960/x
3. Step 3: Cross multiply
   124,140x = 267,960 × 267,960
4. Step 4: Simplify right side
   124,140x = 71,802,561,600
5. Step 5: Solve for x
   x = 71,802,561,600/124,140
6. Step 6: Final answer
   x = 578,399.88