Finding the Third Proportional to 2,651.91 and 5,691.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,651.91 : 5,691.09 = 5,691.09 : x
2. Step 2: Convert to fraction form
   2,651.91/5,691.09 = 5,691.09/x
3. Step 3: Cross multiply
   2,651.91x = 5,691.09 × 5,691.09
4. Step 4: Simplify right side
   2,651.91x = 32,388,548.07
5. Step 5: Solve for x
   x = 32,388,548.07/2,651.91
6. Step 6: Final answer
   x = 12,213.31