Finding the Third Proportional to 39,492 and 86,989.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,492 : 86,989.50 = 86,989.50 : x
2. Step 2: Convert to fraction form
   39,492/86,989.50 = 86,989.50/x
3. Step 3: Cross multiply
   39,492x = 86,989.50 × 86,989.50
4. Step 4: Simplify right side
   39,492x = 7,567,173,110.25
5. Step 5: Solve for x
   x = 7,567,173,110.25/39,492
6. Step 6: Final answer
   x = 191,612.81