Finding the Third Proportional to 15,343.17 and 31,472.30

Step by Step Solution

1. Step 1: Write the proportion equation
   15,343.17 : 31,472.30 = 31,472.30 : x
2. Step 2: Convert to fraction form
   15,343.17/31,472.30 = 31,472.30/x
3. Step 3: Cross multiply
   15,343.17x = 31,472.30 × 31,472.30
4. Step 4: Simplify right side
   15,343.17x = 990,505,470.59
5. Step 5: Solve for x
   x = 990,505,470.59/15,343.17
6. Step 6: Final answer
   x = 64,556.76