Finding the Third Proportional to 21,309 and 34,041

Step by Step Solution

1. Step 1: Write the proportion equation
   21,309 : 34,041 = 34,041 : x
2. Step 2: Convert to fraction form
   21,309/34,041 = 34,041/x
3. Step 3: Cross multiply
   21,309x = 34,041 × 34,041
4. Step 4: Simplify right side
   21,309x = 1,158,789,681
5. Step 5: Solve for x
   x = 1,158,789,681/21,309
6. Step 6: Final answer
   x = 54,380.29