Finding the Third Proportional to 8,605.41 and 12,748.22

Step by Step Solution

1. Step 1: Write the proportion equation
   8,605.41 : 12,748.22 = 12,748.22 : x
2. Step 2: Convert to fraction form
   8,605.41/12,748.22 = 12,748.22/x
3. Step 3: Cross multiply
   8,605.41x = 12,748.22 × 12,748.22
4. Step 4: Simplify right side
   8,605.41x = 162,517,081.30
5. Step 5: Solve for x
   x = 162,517,081.30/8,605.41
6. Step 6: Final answer
   x = 18,885.46