Finding the Third Proportional to 5,515.88 and 10,753.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,515.88 : 10,753.31 = 10,753.31 : x
2. Step 2: Convert to fraction form
   5,515.88/10,753.31 = 10,753.31/x
3. Step 3: Cross multiply
   5,515.88x = 10,753.31 × 10,753.31
4. Step 4: Simplify right side
   5,515.88x = 115,633,729.72
5. Step 5: Solve for x
   x = 115,633,729.72/5,515.88
6. Step 6: Final answer
   x = 20,963.81