Finding the Third Proportional to 206,903 and 443,326

Step by Step Solution

1. Step 1: Write the proportion equation
   206,903 : 443,326 = 443,326 : x
2. Step 2: Convert to fraction form
   206,903/443,326 = 443,326/x
3. Step 3: Cross multiply
   206,903x = 443,326 × 443,326
4. Step 4: Simplify right side
   206,903x = 196,537,942,276
5. Step 5: Solve for x
   x = 196,537,942,276/206,903
6. Step 6: Final answer
   x = 949,903.78