Finding the Third Proportional to 443,884 and 628,086

Step by Step Solution

1. Step 1: Write the proportion equation
   443,884 : 628,086 = 628,086 : x
2. Step 2: Convert to fraction form
   443,884/628,086 = 628,086/x
3. Step 3: Cross multiply
   443,884x = 628,086 × 628,086
4. Step 4: Simplify right side
   443,884x = 394,492,023,396
5. Step 5: Solve for x
   x = 394,492,023,396/443,884
6. Step 6: Final answer
   x = 888,727.74