Finding the Third Proportional to 18,287 and 39,847.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,287 : 39,847.50 = 39,847.50 : x
2. Step 2: Convert to fraction form
   18,287/39,847.50 = 39,847.50/x
3. Step 3: Cross multiply
   18,287x = 39,847.50 × 39,847.50
4. Step 4: Simplify right side
   18,287x = 1,587,823,256.25
5. Step 5: Solve for x
   x = 1,587,823,256.25/18,287
6. Step 6: Final answer
   x = 86,827.98