Finding the Third Proportional to 8,169.75 and 12,222.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,169.75 : 12,222.56 = 12,222.56 : x
2. Step 2: Convert to fraction form
   8,169.75/12,222.56 = 12,222.56/x
3. Step 3: Cross multiply
   8,169.75x = 12,222.56 × 12,222.56
4. Step 4: Simplify right side
   8,169.75x = 149,391,034.07
5. Step 5: Solve for x
   x = 149,391,034.07/8,169.75
6. Step 6: Final answer
   x = 18,285.88