Finding the Third Proportional to 21,520 and 32,880

Step by Step Solution

1. Step 1: Write the proportion equation
   21,520 : 32,880 = 32,880 : x
2. Step 2: Convert to fraction form
   21,520/32,880 = 32,880/x
3. Step 3: Cross multiply
   21,520x = 32,880 × 32,880
4. Step 4: Simplify right side
   21,520x = 1,081,094,400
5. Step 5: Solve for x
   x = 1,081,094,400/21,520
6. Step 6: Final answer
   x = 50,236.73