Finding the Third Proportional to 199,012 and 301,398

Step by Step Solution

1. Step 1: Write the proportion equation
   199,012 : 301,398 = 301,398 : x
2. Step 2: Convert to fraction form
   199,012/301,398 = 301,398/x
3. Step 3: Cross multiply
   199,012x = 301,398 × 301,398
4. Step 4: Simplify right side
   199,012x = 90,840,754,404
5. Step 5: Solve for x
   x = 90,840,754,404/199,012
6. Step 6: Final answer
   x = 456,458.68