Finding the Third Proportional to 18,196.13 and 39,786.56

Step by Step Solution

1. Step 1: Write the proportion equation
   18,196.13 : 39,786.56 = 39,786.56 : x
2. Step 2: Convert to fraction form
   18,196.13/39,786.56 = 39,786.56/x
3. Step 3: Cross multiply
   18,196.13x = 39,786.56 × 39,786.56
4. Step 4: Simplify right side
   18,196.13x = 1,582,970,555.57
5. Step 5: Solve for x
   x = 1,582,970,555.57/18,196.13
6. Step 6: Final answer
   x = 86,994.93