Finding the Third Proportional to 2,703.56 and 5,811.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,703.56 : 5,811.31 = 5,811.31 : x
2. Step 2: Convert to fraction form
   2,703.56/5,811.31 = 5,811.31/x
3. Step 3: Cross multiply
   2,703.56x = 5,811.31 × 5,811.31
4. Step 4: Simplify right side
   2,703.56x = 33,771,352.97
5. Step 5: Solve for x
   x = 33,771,352.97/2,703.56
6. Step 6: Final answer
   x = 12,491.43