Finding the Third Proportional to 1,912.50 and 3,947.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,912.50 : 3,947.25 = 3,947.25 : x
2. Step 2: Convert to fraction form
   1,912.50/3,947.25 = 3,947.25/x
3. Step 3: Cross multiply
   1,912.50x = 3,947.25 × 3,947.25
4. Step 4: Simplify right side
   1,912.50x = 15,580,782.56
5. Step 5: Solve for x
   x = 15,580,782.56/1,912.50
6. Step 6: Final answer
   x = 8,146.81