Finding the Third Proportional to 20,648 and 33,240

Step by Step Solution

1. Step 1: Write the proportion equation
   20,648 : 33,240 = 33,240 : x
2. Step 2: Convert to fraction form
   20,648/33,240 = 33,240/x
3. Step 3: Cross multiply
   20,648x = 33,240 × 33,240
4. Step 4: Simplify right side
   20,648x = 1,104,897,600
5. Step 5: Solve for x
   x = 1,104,897,600/20,648
6. Step 6: Final answer
   x = 53,511.12