Finding the Third Proportional to 300,064.50 and 654,049.69

Step by Step Solution

1. Step 1: Write the proportion equation
   300,064.50 : 654,049.69 = 654,049.69 : x
2. Step 2: Convert to fraction form
   300,064.50/654,049.69 = 654,049.69/x
3. Step 3: Cross multiply
   300,064.50x = 654,049.69 × 654,049.69
4. Step 4: Simplify right side
   300,064.50x = 427,780,993,718.85
5. Step 5: Solve for x
   x = 427,780,993,718.85/300,064.50
6. Step 6: Final answer
   x = 1,425,630.14