Finding the Third Proportional to 9,980 and 20,984

Step by Step Solution

1. Step 1: Write the proportion equation
   9,980 : 20,984 = 20,984 : x
2. Step 2: Convert to fraction form
   9,980/20,984 = 20,984/x
3. Step 3: Cross multiply
   9,980x = 20,984 × 20,984
4. Step 4: Simplify right side
   9,980x = 440,328,256
5. Step 5: Solve for x
   x = 440,328,256/9,980
6. Step 6: Final answer
   x = 44,121.07