Finding the Third Proportional to 9,499.50 and 20,639.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,499.50 : 20,639.25 = 20,639.25 : x
2. Step 2: Convert to fraction form
   9,499.50/20,639.25 = 20,639.25/x
3. Step 3: Cross multiply
   9,499.50x = 20,639.25 × 20,639.25
4. Step 4: Simplify right side
   9,499.50x = 425,978,640.56
5. Step 5: Solve for x
   x = 425,978,640.56/9,499.50
6. Step 6: Final answer
   x = 44,842.22