Finding the Third Proportional to 447,930 and 679,002

Step by Step Solution

1. Step 1: Write the proportion equation
   447,930 : 679,002 = 679,002 : x
2. Step 2: Convert to fraction form
   447,930/679,002 = 679,002/x
3. Step 3: Cross multiply
   447,930x = 679,002 × 679,002
4. Step 4: Simplify right side
   447,930x = 461,043,716,004
5. Step 5: Solve for x
   x = 461,043,716,004/447,930
6. Step 6: Final answer
   x = 1,029,276.26