Finding the Third Proportional to 20,373.75 and 45,418.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,373.75 : 45,418.50 = 45,418.50 : x
2. Step 2: Convert to fraction form
   20,373.75/45,418.50 = 45,418.50/x
3. Step 3: Cross multiply
   20,373.75x = 45,418.50 × 45,418.50
4. Step 4: Simplify right side
   20,373.75x = 2,062,840,142.25
5. Step 5: Solve for x
   x = 2,062,840,142.25/20,373.75
6. Step 6: Final answer
   x = 101,249.90