Finding the Third Proportional to 16,346 and 21,920

Step by Step Solution

1. Step 1: Write the proportion equation
   16,346 : 21,920 = 21,920 : x
2. Step 2: Convert to fraction form
   16,346/21,920 = 21,920/x
3. Step 3: Cross multiply
   16,346x = 21,920 × 21,920
4. Step 4: Simplify right side
   16,346x = 480,486,400
5. Step 5: Solve for x
   x = 480,486,400/16,346
6. Step 6: Final answer
   x = 29,394.74