Finding the Third Proportional to 3,071.25 and 4,871.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,071.25 : 4,871.25 = 4,871.25 : x
2. Step 2: Convert to fraction form
   3,071.25/4,871.25 = 4,871.25/x
3. Step 3: Cross multiply
   3,071.25x = 4,871.25 × 4,871.25
4. Step 4: Simplify right side
   3,071.25x = 23,729,076.56
5. Step 5: Solve for x
   x = 23,729,076.56/3,071.25
6. Step 6: Final answer
   x = 7,726.20