Finding the Third Proportional to 300,703 and 654,341

Step by Step Solution

1. Step 1: Write the proportion equation
   300,703 : 654,341 = 654,341 : x
2. Step 2: Convert to fraction form
   300,703/654,341 = 654,341/x
3. Step 3: Cross multiply
   300,703x = 654,341 × 654,341
4. Step 4: Simplify right side
   300,703x = 428,162,144,281
5. Step 5: Solve for x
   x = 428,162,144,281/300,703
6. Step 6: Final answer
   x = 1,423,870.54