Finding the Third Proportional to 21,404 and 49,211

Step by Step Solution

1. Step 1: Write the proportion equation
   21,404 : 49,211 = 49,211 : x
2. Step 2: Convert to fraction form
   21,404/49,211 = 49,211/x
3. Step 3: Cross multiply
   21,404x = 49,211 × 49,211
4. Step 4: Simplify right side
   21,404x = 2,421,722,521
5. Step 5: Solve for x
   x = 2,421,722,521/21,404
6. Step 6: Final answer
   x = 113,143.46