Finding the Third Proportional to 57,080 and 123,904

Step by Step Solution

1. Step 1: Write the proportion equation
   57,080 : 123,904 = 123,904 : x
2. Step 2: Convert to fraction form
   57,080/123,904 = 123,904/x
3. Step 3: Cross multiply
   57,080x = 123,904 × 123,904
4. Step 4: Simplify right side
   57,080x = 15,352,201,216
5. Step 5: Solve for x
   x = 15,352,201,216/57,080
6. Step 6: Final answer
   x = 268,959.38