Finding the Third Proportional to 2,691.56 and 5,708.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,691.56 : 5,708.81 = 5,708.81 : x
2. Step 2: Convert to fraction form
   2,691.56/5,708.81 = 5,708.81/x
3. Step 3: Cross multiply
   2,691.56x = 5,708.81 × 5,708.81
4. Step 4: Simplify right side
   2,691.56x = 32,590,540.16
5. Step 5: Solve for x
   x = 32,590,540.16/2,691.56
6. Step 6: Final answer
   x = 12,108.41