Finding the Third Proportional to 2,676.09 and 4,153.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,676.09 : 4,153.78 = 4,153.78 : x
2. Step 2: Convert to fraction form
   2,676.09/4,153.78 = 4,153.78/x
3. Step 3: Cross multiply
   2,676.09x = 4,153.78 × 4,153.78
4. Step 4: Simplify right side
   2,676.09x = 17,253,898.67
5. Step 5: Solve for x
   x = 17,253,898.67/2,676.09
6. Step 6: Final answer
   x = 6,447.42