Finding the Third Proportional to 3,480 and 5,222

Step by Step Solution

1. Step 1: Write the proportion equation
   3,480 : 5,222 = 5,222 : x
2. Step 2: Convert to fraction form
   3,480/5,222 = 5,222/x
3. Step 3: Cross multiply
   3,480x = 5,222 × 5,222
4. Step 4: Simplify right side
   3,480x = 27,269,284
5. Step 5: Solve for x
   x = 27,269,284/3,480
6. Step 6: Final answer
   x = 7,836.00