Finding the Third Proportional to 79,690.50 and 111,496.50

Step by Step Solution

1. Step 1: Write the proportion equation
   79,690.50 : 111,496.50 = 111,496.50 : x
2. Step 2: Convert to fraction form
   79,690.50/111,496.50 = 111,496.50/x
3. Step 3: Cross multiply
   79,690.50x = 111,496.50 × 111,496.50
4. Step 4: Simplify right side
   79,690.50x = 12,431,469,512.25
5. Step 5: Solve for x
   x = 12,431,469,512.25/79,690.50
6. Step 6: Final answer
   x = 155,996.88