Finding the Third Proportional to 2,857.88 and 4,003.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,857.88 : 4,003.31 = 4,003.31 : x
2. Step 2: Convert to fraction form
   2,857.88/4,003.31 = 4,003.31/x
3. Step 3: Cross multiply
   2,857.88x = 4,003.31 × 4,003.31
4. Step 4: Simplify right side
   2,857.88x = 16,026,510.97
5. Step 5: Solve for x
   x = 16,026,510.97/2,857.88
6. Step 6: Final answer
   x = 5,607.84