Finding the Third Proportional to 8,522.72 and 12,276.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,522.72 : 12,276.56 = 12,276.56 : x
2. Step 2: Convert to fraction form
   8,522.72/12,276.56 = 12,276.56/x
3. Step 3: Cross multiply
   8,522.72x = 12,276.56 × 12,276.56
4. Step 4: Simplify right side
   8,522.72x = 150,713,986.82
5. Step 5: Solve for x
   x = 150,713,986.82/8,522.72
6. Step 6: Final answer
   x = 17,683.79