Finding the Third Proportional to 2,631.66 and 5,758.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,631.66 : 5,758.31 = 5,758.31 : x
2. Step 2: Convert to fraction form
   2,631.66/5,758.31 = 5,758.31/x
3. Step 3: Cross multiply
   2,631.66x = 5,758.31 × 5,758.31
4. Step 4: Simplify right side
   2,631.66x = 33,158,162.85
5. Step 5: Solve for x
   x = 33,158,162.85/2,631.66
6. Step 6: Final answer
   x = 12,599.73