Finding the Third Proportional to 3,949.88 and 8,223.75

Step by Step Solution

1. Step 1: Write the proportion equation
   3,949.88 : 8,223.75 = 8,223.75 : x
2. Step 2: Convert to fraction form
   3,949.88/8,223.75 = 8,223.75/x
3. Step 3: Cross multiply
   3,949.88x = 8,223.75 × 8,223.75
4. Step 4: Simplify right side
   3,949.88x = 67,630,064.06
5. Step 5: Solve for x
   x = 67,630,064.06/3,949.88
6. Step 6: Final answer
   x = 17,122.08