Finding the Third Proportional to 39,974.77 and 86,996.53

Step by Step Solution

1. Step 1: Write the proportion equation
   39,974.77 : 86,996.53 = 86,996.53 : x
2. Step 2: Convert to fraction form
   39,974.77/86,996.53 = 86,996.53/x
3. Step 3: Cross multiply
   39,974.77x = 86,996.53 × 86,996.53
4. Step 4: Simplify right side
   39,974.77x = 7,568,396,449.53
5. Step 5: Solve for x
   x = 7,568,396,449.53/39,974.77
6. Step 6: Final answer
   x = 189,329.35