Finding the Third Proportional to 18,238.50 and 39,602.25

Step by Step Solution

1. Step 1: Write the proportion equation
   18,238.50 : 39,602.25 = 39,602.25 : x
2. Step 2: Convert to fraction form
   18,238.50/39,602.25 = 39,602.25/x
3. Step 3: Cross multiply
   18,238.50x = 39,602.25 × 39,602.25
4. Step 4: Simplify right side
   18,238.50x = 1,568,338,205.06
5. Step 5: Solve for x
   x = 1,568,338,205.06/18,238.50
6. Step 6: Final answer
   x = 85,990.53