Finding the Third Proportional to 3,320 and 7,222

Step by Step Solution

1. Step 1: Write the proportion equation
   3,320 : 7,222 = 7,222 : x
2. Step 2: Convert to fraction form
   3,320/7,222 = 7,222/x
3. Step 3: Cross multiply
   3,320x = 7,222 × 7,222
4. Step 4: Simplify right side
   3,320x = 52,157,284
5. Step 5: Solve for x
   x = 52,157,284/3,320
6. Step 6: Final answer
   x = 15,710.03