Finding the Third Proportional to 2,154.19 and 3,105.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,154.19 : 3,105.94 = 3,105.94 : x
2. Step 2: Convert to fraction form
   2,154.19/3,105.94 = 3,105.94/x
3. Step 3: Cross multiply
   2,154.19x = 3,105.94 × 3,105.94
4. Step 4: Simplify right side
   2,154.19x = 9,646,847.75
5. Step 5: Solve for x
   x = 9,646,847.75/2,154.19
6. Step 6: Final answer
   x = 4,478.18