Finding the Third Proportional to 2,791.09 and 5,986.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,791.09 : 5,986.90 = 5,986.90 : x
2. Step 2: Convert to fraction form
   2,791.09/5,986.90 = 5,986.90/x
3. Step 3: Cross multiply
   2,791.09x = 5,986.90 × 5,986.90
4. Step 4: Simplify right side
   2,791.09x = 35,842,979.21
5. Step 5: Solve for x
   x = 35,842,979.21/2,791.09
6. Step 6: Final answer
   x = 12,841.93