Finding the Third Proportional to 1,105.31 and 2,418.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.31 : 2,418.19 = 2,418.19 : x
2. Step 2: Convert to fraction form
   1,105.31/2,418.19 = 2,418.19/x
3. Step 3: Cross multiply
   1,105.31x = 2,418.19 × 2,418.19
4. Step 4: Simplify right side
   1,105.31x = 5,847,630.79
5. Step 5: Solve for x
   x = 5,847,630.79/1,105.31
6. Step 6: Final answer
   x = 5,290.48