Finding the Third Proportional to 8,918 and 13,822

Step by Step Solution

1. Step 1: Write the proportion equation
   8,918 : 13,822 = 13,822 : x
2. Step 2: Convert to fraction form
   8,918/13,822 = 13,822/x
3. Step 3: Cross multiply
   8,918x = 13,822 × 13,822
4. Step 4: Simplify right side
   8,918x = 191,047,684
5. Step 5: Solve for x
   x = 191,047,684/8,918
6. Step 6: Final answer
   x = 21,422.71