Finding the Third Proportional to 123,120 and 270,540

Step by Step Solution

1. Step 1: Write the proportion equation
   123,120 : 270,540 = 270,540 : x
2. Step 2: Convert to fraction form
   123,120/270,540 = 270,540/x
3. Step 3: Cross multiply
   123,120x = 270,540 × 270,540
4. Step 4: Simplify right side
   123,120x = 73,191,891,600
5. Step 5: Solve for x
   x = 73,191,891,600/123,120
6. Step 6: Final answer
   x = 594,476.05