Finding the Third Proportional to 206,917 and 443,362

Step by Step Solution

1. Step 1: Write the proportion equation
   206,917 : 443,362 = 443,362 : x
2. Step 2: Convert to fraction form
   206,917/443,362 = 443,362/x
3. Step 3: Cross multiply
   206,917x = 443,362 × 443,362
4. Step 4: Simplify right side
   206,917x = 196,569,863,044
5. Step 5: Solve for x
   x = 196,569,863,044/206,917
6. Step 6: Final answer
   x = 949,993.78