Finding the Third Proportional to 447,241.50 and 677,970

Step by Step Solution

1. Step 1: Write the proportion equation
   447,241.50 : 677,970 = 677,970 : x
2. Step 2: Convert to fraction form
   447,241.50/677,970 = 677,970/x
3. Step 3: Cross multiply
   447,241.50x = 677,970 × 677,970
4. Step 4: Simplify right side
   447,241.50x = 459,643,320,900
5. Step 5: Solve for x
   x = 459,643,320,900/447,241.50
6. Step 6: Final answer
   x = 1,027,729.58