Finding the Third Proportional to 8,608.78 and 18,867.94

Step by Step Solution

1. Step 1: Write the proportion equation
   8,608.78 : 18,867.94 = 18,867.94 : x
2. Step 2: Convert to fraction form
   8,608.78/18,867.94 = 18,867.94/x
3. Step 3: Cross multiply
   8,608.78x = 18,867.94 × 18,867.94
4. Step 4: Simplify right side
   8,608.78x = 355,999,065.50
5. Step 5: Solve for x
   x = 355,999,065.50/8,608.78
6. Step 6: Final answer
   x = 41,353.02