Finding the Third Proportional to 1,862.72 and 3,947.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,862.72 : 3,947.48 = 3,947.48 : x
2. Step 2: Convert to fraction form
   1,862.72/3,947.48 = 3,947.48/x
3. Step 3: Cross multiply
   1,862.72x = 3,947.48 × 3,947.48
4. Step 4: Simplify right side
   1,862.72x = 15,582,632.89
5. Step 5: Solve for x
   x = 15,582,632.89/1,862.72
6. Step 6: Final answer
   x = 8,365.53