Finding the Third Proportional to 20,311.88 and 45,291.52

Step by Step Solution

1. Step 1: Write the proportion equation
   20,311.88 : 45,291.52 = 45,291.52 : x
2. Step 2: Convert to fraction form
   20,311.88/45,291.52 = 45,291.52/x
3. Step 3: Cross multiply
   20,311.88x = 45,291.52 × 45,291.52
4. Step 4: Simplify right side
   20,311.88x = 2,051,321,387.61
5. Step 5: Solve for x
   x = 2,051,321,387.61/20,311.88
6. Step 6: Final answer
   x = 100,991.24