Finding the Third Proportional to 206,910 and 443,348

Step by Step Solution

1. Step 1: Write the proportion equation
   206,910 : 443,348 = 443,348 : x
2. Step 2: Convert to fraction form
   206,910/443,348 = 443,348/x
3. Step 3: Cross multiply
   206,910x = 443,348 × 443,348
4. Step 4: Simplify right side
   206,910x = 196,557,449,104
5. Step 5: Solve for x
   x = 196,557,449,104/206,910
6. Step 6: Final answer
   x = 949,965.92