Finding the Third Proportional to 1,912.78 and 2,833.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,912.78 : 2,833.31 = 2,833.31 : x
2. Step 2: Convert to fraction form
   1,912.78/2,833.31 = 2,833.31/x
3. Step 3: Cross multiply
   1,912.78x = 2,833.31 × 2,833.31
4. Step 4: Simplify right side
   1,912.78x = 8,027,659.72
5. Step 5: Solve for x
   x = 8,027,659.72/1,912.78
6. Step 6: Final answer
   x = 4,196.85