Finding the Third Proportional to 2,108.81 and 3,151.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108.81 : 3,151.41 = 3,151.41 : x
2. Step 2: Convert to fraction form
   2,108.81/3,151.41 = 3,151.41/x
3. Step 3: Cross multiply
   2,108.81x = 3,151.41 × 3,151.41
4. Step 4: Simplify right side
   2,108.81x = 9,931,361.35
5. Step 5: Solve for x
   x = 9,931,361.35/2,108.81
6. Step 6: Final answer
   x = 4,709.46