Finding the Third Proportional to 12,219.29 and 18,384.47

Step by Step Solution

1. Step 1: Write the proportion equation
   12,219.29 : 18,384.47 = 18,384.47 : x
2. Step 2: Convert to fraction form
   12,219.29/18,384.47 = 18,384.47/x
3. Step 3: Cross multiply
   12,219.29x = 18,384.47 × 18,384.47
4. Step 4: Simplify right side
   12,219.29x = 337,988,691.22
5. Step 5: Solve for x
   x = 337,988,691.22/12,219.29
6. Step 6: Final answer
   x = 27,660.25