Finding the Third Proportional to 8,163.56 and 12,384.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,163.56 : 12,384.56 = 12,384.56 : x
2. Step 2: Convert to fraction form
   8,163.56/12,384.56 = 12,384.56/x
3. Step 3: Cross multiply
   8,163.56x = 12,384.56 × 12,384.56
4. Step 4: Simplify right side
   8,163.56x = 153,377,388.32
5. Step 5: Solve for x
   x = 153,377,388.32/8,163.56
6. Step 6: Final answer
   x = 18,788.05