Finding the Third Proportional to 21,411 and 34,099

Step by Step Solution

1. Step 1: Write the proportion equation
   21,411 : 34,099 = 34,099 : x
2. Step 2: Convert to fraction form
   21,411/34,099 = 34,099/x
3. Step 3: Cross multiply
   21,411x = 34,099 × 34,099
4. Step 4: Simplify right side
   21,411x = 1,162,741,801
5. Step 5: Solve for x
   x = 1,162,741,801/21,411
6. Step 6: Final answer
   x = 54,305.81