Finding the Third Proportional to 2,285 and 3,119.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,285 : 3,119.50 = 3,119.50 : x
2. Step 2: Convert to fraction form
   2,285/3,119.50 = 3,119.50/x
3. Step 3: Cross multiply
   2,285x = 3,119.50 × 3,119.50
4. Step 4: Simplify right side
   2,285x = 9,731,280.25
5. Step 5: Solve for x
   x = 9,731,280.25/2,285
6. Step 6: Final answer
   x = 4,258.77