Finding the Third Proportional to 9,418.78 and 13,168.83

Step by Step Solution

1. Step 1: Write the proportion equation
   9,418.78 : 13,168.83 = 13,168.83 : x
2. Step 2: Convert to fraction form
   9,418.78/13,168.83 = 13,168.83/x
3. Step 3: Cross multiply
   9,418.78x = 13,168.83 × 13,168.83
4. Step 4: Simplify right side
   9,418.78x = 173,418,034.19
5. Step 5: Solve for x
   x = 173,418,034.19/9,418.78
6. Step 6: Final answer
   x = 18,411.94