Finding the Third Proportional to 15,258.38 and 31,488.75

Step by Step Solution

1. Step 1: Write the proportion equation
   15,258.38 : 31,488.75 = 31,488.75 : x
2. Step 2: Convert to fraction form
   15,258.38/31,488.75 = 31,488.75/x
3. Step 3: Cross multiply
   15,258.38x = 31,488.75 × 31,488.75
4. Step 4: Simplify right side
   15,258.38x = 991,541,376.56
5. Step 5: Solve for x
   x = 991,541,376.56/15,258.38
6. Step 6: Final answer
   x = 64,983.42