Finding the Third Proportional to 39,993.25 and 87,519.25

Step by Step Solution

1. Step 1: Write the proportion equation
   39,993.25 : 87,519.25 = 87,519.25 : x
2. Step 2: Convert to fraction form
   39,993.25/87,519.25 = 87,519.25/x
3. Step 3: Cross multiply
   39,993.25x = 87,519.25 × 87,519.25
4. Step 4: Simplify right side
   39,993.25x = 7,659,619,120.56
5. Step 5: Solve for x
   x = 7,659,619,120.56/39,993.25
6. Step 6: Final answer
   x = 191,522.80