Finding the Third Proportional to 443,876 and 628,074

Step by Step Solution

1. Step 1: Write the proportion equation
   443,876 : 628,074 = 628,074 : x
2. Step 2: Convert to fraction form
   443,876/628,074 = 628,074/x
3. Step 3: Cross multiply
   443,876x = 628,074 × 628,074
4. Step 4: Simplify right side
   443,876x = 394,476,949,476
5. Step 5: Solve for x
   x = 394,476,949,476/443,876
6. Step 6: Final answer
   x = 888,709.80