Finding the Third Proportional to 15,440 and 31,425.50

Step by Step Solution

1. Step 1: Write the proportion equation
   15,440 : 31,425.50 = 31,425.50 : x
2. Step 2: Convert to fraction form
   15,440/31,425.50 = 31,425.50/x
3. Step 3: Cross multiply
   15,440x = 31,425.50 × 31,425.50
4. Step 4: Simplify right side
   15,440x = 987,562,050.25
5. Step 5: Solve for x
   x = 987,562,050.25/15,440
6. Step 6: Final answer
   x = 63,961.27