Finding the Third Proportional to 21,687.75 and 44,671.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,687.75 : 44,671.50 = 44,671.50 : x
2. Step 2: Convert to fraction form
   21,687.75/44,671.50 = 44,671.50/x
3. Step 3: Cross multiply
   21,687.75x = 44,671.50 × 44,671.50
4. Step 4: Simplify right side
   21,687.75x = 1,995,542,912.25
5. Step 5: Solve for x
   x = 1,995,542,912.25/21,687.75
6. Step 6: Final answer
   x = 92,012.45