Finding the Third Proportional to 125,462.25 and 257,040

Step by Step Solution

1. Step 1: Write the proportion equation
   125,462.25 : 257,040 = 257,040 : x
2. Step 2: Convert to fraction form
   125,462.25/257,040 = 257,040/x
3. Step 3: Cross multiply
   125,462.25x = 257,040 × 257,040
4. Step 4: Simplify right side
   125,462.25x = 66,069,561,600
5. Step 5: Solve for x
   x = 66,069,561,600/125,462.25
6. Step 6: Final answer
   x = 526,609.09