Finding the Third Proportional to 8,226.56 and 12,411.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,226.56 : 12,411.56 = 12,411.56 : x
2. Step 2: Convert to fraction form
   8,226.56/12,411.56 = 12,411.56/x
3. Step 3: Cross multiply
   8,226.56x = 12,411.56 × 12,411.56
4. Step 4: Simplify right side
   8,226.56x = 154,046,883.69
5. Step 5: Solve for x
   x = 154,046,883.69/8,226.56
6. Step 6: Final answer
   x = 18,725.55