Finding the Third Proportional to 21,879 and 32,810

Step by Step Solution

1. Step 1: Write the proportion equation
   21,879 : 32,810 = 32,810 : x
2. Step 2: Convert to fraction form
   21,879/32,810 = 32,810/x
3. Step 3: Cross multiply
   21,879x = 32,810 × 32,810
4. Step 4: Simplify right side
   21,879x = 1,076,496,100
5. Step 5: Solve for x
   x = 1,076,496,100/21,879
6. Step 6: Final answer
   x = 49,202.25