Finding the Third Proportional to 9,980 and 20,994

Step by Step Solution

1. Step 1: Write the proportion equation
   9,980 : 20,994 = 20,994 : x
2. Step 2: Convert to fraction form
   9,980/20,994 = 20,994/x
3. Step 3: Cross multiply
   9,980x = 20,994 × 20,994
4. Step 4: Simplify right side
   9,980x = 440,748,036
5. Step 5: Solve for x
   x = 440,748,036/9,980
6. Step 6: Final answer
   x = 44,163.13