Finding the Third Proportional to 21,458 and 34,467

Step by Step Solution

1. Step 1: Write the proportion equation
   21,458 : 34,467 = 34,467 : x
2. Step 2: Convert to fraction form
   21,458/34,467 = 34,467/x
3. Step 3: Cross multiply
   21,458x = 34,467 × 34,467
4. Step 4: Simplify right side
   21,458x = 1,187,974,089
5. Step 5: Solve for x
   x = 1,187,974,089/21,458
6. Step 6: Final answer
   x = 55,362.76