Finding the Third Proportional to 20,721 and 32,322.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,721 : 32,322.50 = 32,322.50 : x
2. Step 2: Convert to fraction form
   20,721/32,322.50 = 32,322.50/x
3. Step 3: Cross multiply
   20,721x = 32,322.50 × 32,322.50
4. Step 4: Simplify right side
   20,721x = 1,044,744,006.25
5. Step 5: Solve for x
   x = 1,044,744,006.25/20,721
6. Step 6: Final answer
   x = 50,419.57