Finding the Third Proportional to 8,668.50 and 20,456.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,668.50 : 20,456.25 = 20,456.25 : x
2. Step 2: Convert to fraction form
   8,668.50/20,456.25 = 20,456.25/x
3. Step 3: Cross multiply
   8,668.50x = 20,456.25 × 20,456.25
4. Step 4: Simplify right side
   8,668.50x = 418,458,164.06
5. Step 5: Solve for x
   x = 418,458,164.06/8,668.50
6. Step 6: Final answer
   x = 48,273.42