Finding the Third Proportional to 2,076.75 and 4,354.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.75 : 4,354.31 = 4,354.31 : x
2. Step 2: Convert to fraction form
   2,076.75/4,354.31 = 4,354.31/x
3. Step 3: Cross multiply
   2,076.75x = 4,354.31 × 4,354.31
4. Step 4: Simplify right side
   2,076.75x = 18,960,037.35
5. Step 5: Solve for x
   x = 18,960,037.35/2,076.75
6. Step 6: Final answer
   x = 9,129.67