Finding the Third Proportional to 1,517.91 and 3,183.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,517.91 : 3,183.89 = 3,183.89 : x
2. Step 2: Convert to fraction form
   1,517.91/3,183.89 = 3,183.89/x
3. Step 3: Cross multiply
   1,517.91x = 3,183.89 × 3,183.89
4. Step 4: Simplify right side
   1,517.91x = 10,137,159.51
5. Step 5: Solve for x
   x = 10,137,159.51/1,517.91
6. Step 6: Final answer
   x = 6,678.38