Finding the Third Proportional to 8,425.69 and 13,123.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,425.69 : 13,123.69 = 13,123.69 : x
2. Step 2: Convert to fraction form
   8,425.69/13,123.69 = 13,123.69/x
3. Step 3: Cross multiply
   8,425.69x = 13,123.69 × 13,123.69
4. Step 4: Simplify right side
   8,425.69x = 172,231,173.60
5. Step 5: Solve for x
   x = 172,231,173.60/8,425.69
6. Step 6: Final answer
   x = 20,441.20