Finding the Third Proportional to 15,742.88 and 22,012.31

Step by Step Solution

1. Step 1: Write the proportion equation
   15,742.88 : 22,012.31 = 22,012.31 : x
2. Step 2: Convert to fraction form
   15,742.88/22,012.31 = 22,012.31/x
3. Step 3: Cross multiply
   15,742.88x = 22,012.31 × 22,012.31
4. Step 4: Simplify right side
   15,742.88x = 484,541,901.60
5. Step 5: Solve for x
   x = 484,541,901.60/15,742.88
6. Step 6: Final answer
   x = 30,778.49