Finding the Third Proportional to 8,990 and 17,644

Step by Step Solution

1. Step 1: Write the proportion equation
   8,990 : 17,644 = 17,644 : x
2. Step 2: Convert to fraction form
   8,990/17,644 = 17,644/x
3. Step 3: Cross multiply
   8,990x = 17,644 × 17,644
4. Step 4: Simplify right side
   8,990x = 311,310,736
5. Step 5: Solve for x
   x = 311,310,736/8,990
6. Step 6: Final answer
   x = 34,628.56