Finding the Third Proportional to 2,665.13 and 4,143.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665.13 : 4,143.38 = 4,143.38 : x
2. Step 2: Convert to fraction form
   2,665.13/4,143.38 = 4,143.38/x
3. Step 3: Cross multiply
   2,665.13x = 4,143.38 × 4,143.38
4. Step 4: Simplify right side
   2,665.13x = 17,167,556.39
5. Step 5: Solve for x
   x = 17,167,556.39/2,665.13
6. Step 6: Final answer
   x = 6,441.56