Finding the Third Proportional to 8,604.56 and 12,747.38

Step by Step Solution

1. Step 1: Write the proportion equation
   8,604.56 : 12,747.38 = 12,747.38 : x
2. Step 2: Convert to fraction form
   8,604.56/12,747.38 = 12,747.38/x
3. Step 3: Cross multiply
   8,604.56x = 12,747.38 × 12,747.38
4. Step 4: Simplify right side
   8,604.56x = 162,495,569.39
5. Step 5: Solve for x
   x = 162,495,569.39/8,604.56
6. Step 6: Final answer
   x = 18,884.81