Finding the Third Proportional to 18,239.63 and 39,251.25

Step by Step Solution

1. Step 1: Write the proportion equation
   18,239.63 : 39,251.25 = 39,251.25 : x
2. Step 2: Convert to fraction form
   18,239.63/39,251.25 = 39,251.25/x
3. Step 3: Cross multiply
   18,239.63x = 39,251.25 × 39,251.25
4. Step 4: Simplify right side
   18,239.63x = 1,540,660,626.56
5. Step 5: Solve for x
   x = 1,540,660,626.56/18,239.63
6. Step 6: Final answer
   x = 84,467.78