Finding the Third Proportional to 12,294.28 and 18,388.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,294.28 : 18,388.27 = 18,388.27 : x
2. Step 2: Convert to fraction form
   12,294.28/18,388.27 = 18,388.27/x
3. Step 3: Cross multiply
   12,294.28x = 18,388.27 × 18,388.27
4. Step 4: Simplify right side
   12,294.28x = 338,128,312.70
5. Step 5: Solve for x
   x = 338,128,312.70/12,294.28
6. Step 6: Final answer
   x = 27,502.89