Finding the Third Proportional to 2,691.04 and 5,777.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,691.04 : 5,777.89 = 5,777.89 : x
2. Step 2: Convert to fraction form
   2,691.04/5,777.89 = 5,777.89/x
3. Step 3: Cross multiply
   2,691.04x = 5,777.89 × 5,777.89
4. Step 4: Simplify right side
   2,691.04x = 33,384,065.21
5. Step 5: Solve for x
   x = 33,384,065.21/2,691.04
6. Step 6: Final answer
   x = 12,405.66