Finding the Third Proportional to 39,940.50 and 87,519.75

Step by Step Solution

1. Step 1: Write the proportion equation
   39,940.50 : 87,519.75 = 87,519.75 : x
2. Step 2: Convert to fraction form
   39,940.50/87,519.75 = 87,519.75/x
3. Step 3: Cross multiply
   39,940.50x = 87,519.75 × 87,519.75
4. Step 4: Simplify right side
   39,940.50x = 7,659,706,640.06
5. Step 5: Solve for x
   x = 7,659,706,640.06/39,940.50
6. Step 6: Final answer
   x = 191,777.94