Finding the Third Proportional to 15,438.38 and 31,422.38

Step by Step Solution

1. Step 1: Write the proportion equation
   15,438.38 : 31,422.38 = 31,422.38 : x
2. Step 2: Convert to fraction form
   15,438.38/31,422.38 = 31,422.38/x
3. Step 3: Cross multiply
   15,438.38x = 31,422.38 × 31,422.38
4. Step 4: Simplify right side
   15,438.38x = 987,365,650.64
5. Step 5: Solve for x
   x = 987,365,650.64/15,438.38
6. Step 6: Final answer
   x = 63,955.28