Finding the Third Proportional to 446,314 and 679,960

Step by Step Solution

1. Step 1: Write the proportion equation
   446,314 : 679,960 = 679,960 : x
2. Step 2: Convert to fraction form
   446,314/679,960 = 679,960/x
3. Step 3: Cross multiply
   446,314x = 679,960 × 679,960
4. Step 4: Simplify right side
   446,314x = 462,345,601,600
5. Step 5: Solve for x
   x = 462,345,601,600/446,314
6. Step 6: Final answer
   x = 1,035,920.01