Finding the Third Proportional to 2,687.63 and 4,002.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,687.63 : 4,002.75 = 4,002.75 : x
2. Step 2: Convert to fraction form
   2,687.63/4,002.75 = 4,002.75/x
3. Step 3: Cross multiply
   2,687.63x = 4,002.75 × 4,002.75
4. Step 4: Simplify right side
   2,687.63x = 16,022,007.56
5. Step 5: Solve for x
   x = 16,022,007.56/2,687.63
6. Step 6: Final answer
   x = 5,961.40