Finding the Third Proportional to 9,228 and 12,722

Step by Step Solution

1. Step 1: Write the proportion equation
   9,228 : 12,722 = 12,722 : x
2. Step 2: Convert to fraction form
   9,228/12,722 = 12,722/x
3. Step 3: Cross multiply
   9,228x = 12,722 × 12,722
4. Step 4: Simplify right side
   9,228x = 161,849,284
5. Step 5: Solve for x
   x = 161,849,284/9,228
6. Step 6: Final answer
   x = 17,538.93