Finding the Third Proportional to 2,660.63 and 5,787.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,660.63 : 5,787.75 = 5,787.75 : x
2. Step 2: Convert to fraction form
   2,660.63/5,787.75 = 5,787.75/x
3. Step 3: Cross multiply
   2,660.63x = 5,787.75 × 5,787.75
4. Step 4: Simplify right side
   2,660.63x = 33,498,050.06
5. Step 5: Solve for x
   x = 33,498,050.06/2,660.63
6. Step 6: Final answer
   x = 12,590.29