Finding the Third Proportional to 15,139.50 and 31,358.25

Step by Step Solution

1. Step 1: Write the proportion equation
   15,139.50 : 31,358.25 = 31,358.25 : x
2. Step 2: Convert to fraction form
   15,139.50/31,358.25 = 31,358.25/x
3. Step 3: Cross multiply
   15,139.50x = 31,358.25 × 31,358.25
4. Step 4: Simplify right side
   15,139.50x = 983,339,843.06
5. Step 5: Solve for x
   x = 983,339,843.06/15,139.50
6. Step 6: Final answer
   x = 64,951.94