Finding the Third Proportional to 18,288.28 and 39,304.55

Step by Step Solution

1. Step 1: Write the proportion equation
   18,288.28 : 39,304.55 = 39,304.55 : x
2. Step 2: Convert to fraction form
   18,288.28/39,304.55 = 39,304.55/x
3. Step 3: Cross multiply
   18,288.28x = 39,304.55 × 39,304.55
4. Step 4: Simplify right side
   18,288.28x = 1,544,847,405.05
5. Step 5: Solve for x
   x = 1,544,847,405.05/18,288.28
6. Step 6: Final answer
   x = 84,471.98