Finding the Third Proportional to 8,989.73 and 13,609.27

Step by Step Solution

1. Step 1: Write the proportion equation
   8,989.73 : 13,609.27 = 13,609.27 : x
2. Step 2: Convert to fraction form
   8,989.73/13,609.27 = 13,609.27/x
3. Step 3: Cross multiply
   8,989.73x = 13,609.27 × 13,609.27
4. Step 4: Simplify right side
   8,989.73x = 185,212,110.85
5. Step 5: Solve for x
   x = 185,212,110.85/8,989.73
6. Step 6: Final answer
   x = 20,602.62