Finding the Third Proportional to 8,954 and 21,109

Step by Step Solution

1. Step 1: Write the proportion equation
   8,954 : 21,109 = 21,109 : x
2. Step 2: Convert to fraction form
   8,954/21,109 = 21,109/x
3. Step 3: Cross multiply
   8,954x = 21,109 × 21,109
4. Step 4: Simplify right side
   8,954x = 445,589,881
5. Step 5: Solve for x
   x = 445,589,881/8,954
6. Step 6: Final answer
   x = 49,764.34