Finding the Third Proportional to 140,296 and 300,330

Step by Step Solution

1. Step 1: Write the proportion equation
   140,296 : 300,330 = 300,330 : x
2. Step 2: Convert to fraction form
   140,296/300,330 = 300,330/x
3. Step 3: Cross multiply
   140,296x = 300,330 × 300,330
4. Step 4: Simplify right side
   140,296x = 90,198,108,900
5. Step 5: Solve for x
   x = 90,198,108,900/140,296
6. Step 6: Final answer
   x = 642,912.90