Finding the Third Proportional to 18,568.78 and 40,097.61

Step by Step Solution

1. Step 1: Write the proportion equation
   18,568.78 : 40,097.61 = 40,097.61 : x
2. Step 2: Convert to fraction form
   18,568.78/40,097.61 = 40,097.61/x
3. Step 3: Cross multiply
   18,568.78x = 40,097.61 × 40,097.61
4. Step 4: Simplify right side
   18,568.78x = 1,607,818,355.91
5. Step 5: Solve for x
   x = 1,607,818,355.91/18,568.78
6. Step 6: Final answer
   x = 86,587.20