Finding the Third Proportional to 21,000 and 32,520

Step by Step Solution

1. Step 1: Write the proportion equation
   21,000 : 32,520 = 32,520 : x
2. Step 2: Convert to fraction form
   21,000/32,520 = 32,520/x
3. Step 3: Cross multiply
   21,000x = 32,520 × 32,520
4. Step 4: Simplify right side
   21,000x = 1,057,550,400
5. Step 5: Solve for x
   x = 1,057,550,400/21,000
6. Step 6: Final answer
   x = 50,359.54