Finding the Third Proportional to 20,139.75 and 22,205.25

Step by Step Solution

1. Step 1: Write the proportion equation
   20,139.75 : 22,205.25 = 22,205.25 : x
2. Step 2: Convert to fraction form
   20,139.75/22,205.25 = 22,205.25/x
3. Step 3: Cross multiply
   20,139.75x = 22,205.25 × 22,205.25
4. Step 4: Simplify right side
   20,139.75x = 493,073,127.56
5. Step 5: Solve for x
   x = 493,073,127.56/20,139.75
6. Step 6: Final answer
   x = 24,482.58