Finding the Third Proportional to 206,469.50 and 300,716

Step by Step Solution

1. Step 1: Write the proportion equation
   206,469.50 : 300,716 = 300,716 : x
2. Step 2: Convert to fraction form
   206,469.50/300,716 = 300,716/x
3. Step 3: Cross multiply
   206,469.50x = 300,716 × 300,716
4. Step 4: Simplify right side
   206,469.50x = 90,430,112,656
5. Step 5: Solve for x
   x = 90,430,112,656/206,469.50
6. Step 6: Final answer
   x = 437,982.91