Finding the Third Proportional to 8,662.25 and 12,669.38

Step by Step Solution

1. Step 1: Write the proportion equation
   8,662.25 : 12,669.38 = 12,669.38 : x
2. Step 2: Convert to fraction form
   8,662.25/12,669.38 = 12,669.38/x
3. Step 3: Cross multiply
   8,662.25x = 12,669.38 × 12,669.38
4. Step 4: Simplify right side
   8,662.25x = 160,513,062.89
5. Step 5: Solve for x
   x = 160,513,062.89/8,662.25
6. Step 6: Final answer
   x = 18,530.18