Finding the Third Proportional to 21,840 and 34,461

Step by Step Solution

1. Step 1: Write the proportion equation
   21,840 : 34,461 = 34,461 : x
2. Step 2: Convert to fraction form
   21,840/34,461 = 34,461/x
3. Step 3: Cross multiply
   21,840x = 34,461 × 34,461
4. Step 4: Simplify right side
   21,840x = 1,187,560,521
5. Step 5: Solve for x
   x = 1,187,560,521/21,840
6. Step 6: Final answer
   x = 54,375.48