Finding the Third Proportional to 1,911.94 and 3,019.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,911.94 : 3,019.78 = 3,019.78 : x
2. Step 2: Convert to fraction form
   1,911.94/3,019.78 = 3,019.78/x
3. Step 3: Cross multiply
   1,911.94x = 3,019.78 × 3,019.78
4. Step 4: Simplify right side
   1,911.94x = 9,119,078.80
5. Step 5: Solve for x
   x = 9,119,078.80/1,911.94
6. Step 6: Final answer
   x = 4,769.55