Finding the Third Proportional to 206,608.50 and 447,945

Step by Step Solution

1. Step 1: Write the proportion equation
   206,608.50 : 447,945 = 447,945 : x
2. Step 2: Convert to fraction form
   206,608.50/447,945 = 447,945/x
3. Step 3: Cross multiply
   206,608.50x = 447,945 × 447,945
4. Step 4: Simplify right side
   206,608.50x = 200,654,723,025
5. Step 5: Solve for x
   x = 200,654,723,025/206,608.50
6. Step 6: Final answer
   x = 971,183.29