Finding the Third Proportional to 199,028 and 298,419

Step by Step Solution

1. Step 1: Write the proportion equation
   199,028 : 298,419 = 298,419 : x
2. Step 2: Convert to fraction form
   199,028/298,419 = 298,419/x
3. Step 3: Cross multiply
   199,028x = 298,419 × 298,419
4. Step 4: Simplify right side
   199,028x = 89,053,899,561
5. Step 5: Solve for x
   x = 89,053,899,561/199,028
6. Step 6: Final answer
   x = 447,444.08