Finding the Third Proportional to 2,907.75 and 3,986.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,907.75 : 3,986.25 = 3,986.25 : x
2. Step 2: Convert to fraction form
   2,907.75/3,986.25 = 3,986.25/x
3. Step 3: Cross multiply
   2,907.75x = 3,986.25 × 3,986.25
4. Step 4: Simplify right side
   2,907.75x = 15,890,189.06
5. Step 5: Solve for x
   x = 15,890,189.06/2,907.75
6. Step 6: Final answer
   x = 5,464.77