Finding the Third Proportional to 18,874.27 and 39,992.48

Step by Step Solution

1. Step 1: Write the proportion equation
   18,874.27 : 39,992.48 = 39,992.48 : x
2. Step 2: Convert to fraction form
   18,874.27/39,992.48 = 39,992.48/x
3. Step 3: Cross multiply
   18,874.27x = 39,992.48 × 39,992.48
4. Step 4: Simplify right side
   18,874.27x = 1,599,398,806.48
5. Step 5: Solve for x
   x = 1,599,398,806.48/18,874.27
6. Step 6: Final answer
   x = 84,739.66