Finding the Third Proportional to 9,668 and 20,520.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,668 : 20,520.50 = 20,520.50 : x
2. Step 2: Convert to fraction form
   9,668/20,520.50 = 20,520.50/x
3. Step 3: Cross multiply
   9,668x = 20,520.50 × 20,520.50
4. Step 4: Simplify right side
   9,668x = 421,090,920.25
5. Step 5: Solve for x
   x = 421,090,920.25/9,668
6. Step 6: Final answer
   x = 43,555.12