Finding the Third Proportional to 208,904 and 447,320

Step by Step Solution

1. Step 1: Write the proportion equation
   208,904 : 447,320 = 447,320 : x
2. Step 2: Convert to fraction form
   208,904/447,320 = 447,320/x
3. Step 3: Cross multiply
   208,904x = 447,320 × 447,320
4. Step 4: Simplify right side
   208,904x = 200,095,182,400
5. Step 5: Solve for x
   x = 200,095,182,400/208,904
6. Step 6: Final answer
   x = 957,833.18