Finding the Third Proportional to 206,908 and 443,345

Step by Step Solution

1. Step 1: Write the proportion equation
   206,908 : 443,345 = 443,345 : x
2. Step 2: Convert to fraction form
   206,908/443,345 = 443,345/x
3. Step 3: Cross multiply
   206,908x = 443,345 × 443,345
4. Step 4: Simplify right side
   206,908x = 196,554,789,025
5. Step 5: Solve for x
   x = 196,554,789,025/206,908
6. Step 6: Final answer
   x = 949,962.25