Finding the Third Proportional to 123,039 and 267,399

Step by Step Solution

1. Step 1: Write the proportion equation
   123,039 : 267,399 = 267,399 : x
2. Step 2: Convert to fraction form
   123,039/267,399 = 267,399/x
3. Step 3: Cross multiply
   123,039x = 267,399 × 267,399
4. Step 4: Simplify right side
   123,039x = 71,502,225,201
5. Step 5: Solve for x
   x = 71,502,225,201/123,039
6. Step 6: Final answer
   x = 581,134.64