Finding the Third Proportional to 8,606 and 12,576

Step by Step Solution

1. Step 1: Write the proportion equation
   8,606 : 12,576 = 12,576 : x
2. Step 2: Convert to fraction form
   8,606/12,576 = 12,576/x
3. Step 3: Cross multiply
   8,606x = 12,576 × 12,576
4. Step 4: Simplify right side
   8,606x = 158,155,776
5. Step 5: Solve for x
   x = 158,155,776/8,606
6. Step 6: Final answer
   x = 18,377.39