Finding the Third Proportional to 447,377.50 and 677,578

Step by Step Solution

1. Step 1: Write the proportion equation
   447,377.50 : 677,578 = 677,578 : x
2. Step 2: Convert to fraction form
   447,377.50/677,578 = 677,578/x
3. Step 3: Cross multiply
   447,377.50x = 677,578 × 677,578
4. Step 4: Simplify right side
   447,377.50x = 459,111,946,084
5. Step 5: Solve for x
   x = 459,111,946,084/447,377.50
6. Step 6: Final answer
   x = 1,026,229.41