Finding the Third Proportional to 12,743.58 and 21,061.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,743.58 : 21,061.27 = 21,061.27 : x
2. Step 2: Convert to fraction form
   12,743.58/21,061.27 = 21,061.27/x
3. Step 3: Cross multiply
   12,743.58x = 21,061.27 × 21,061.27
4. Step 4: Simplify right side
   12,743.58x = 443,576,909.73
5. Step 5: Solve for x
   x = 443,576,909.73/12,743.58
6. Step 6: Final answer
   x = 34,807.88