Finding the Third Proportional to 21,898 and 34,680

Step by Step Solution

1. Step 1: Write the proportion equation
   21,898 : 34,680 = 34,680 : x
2. Step 2: Convert to fraction form
   21,898/34,680 = 34,680/x
3. Step 3: Cross multiply
   21,898x = 34,680 × 34,680
4. Step 4: Simplify right side
   21,898x = 1,202,702,400
5. Step 5: Solve for x
   x = 1,202,702,400/21,898
6. Step 6: Final answer
   x = 54,922.93