Finding the Third Proportional to 204,540 and 447,360

Step by Step Solution

1. Step 1: Write the proportion equation
   204,540 : 447,360 = 447,360 : x
2. Step 2: Convert to fraction form
   204,540/447,360 = 447,360/x
3. Step 3: Cross multiply
   204,540x = 447,360 × 447,360
4. Step 4: Simplify right side
   204,540x = 200,130,969,600
5. Step 5: Solve for x
   x = 200,130,969,600/204,540
6. Step 6: Final answer
   x = 978,444.17