Finding the Third Proportional to 200,728 and 301,108

Step by Step Solution

1. Step 1: Write the proportion equation
   200,728 : 301,108 = 301,108 : x
2. Step 2: Convert to fraction form
   200,728/301,108 = 301,108/x
3. Step 3: Cross multiply
   200,728x = 301,108 × 301,108
4. Step 4: Simplify right side
   200,728x = 90,666,027,664
5. Step 5: Solve for x
   x = 90,666,027,664/200,728
6. Step 6: Final answer
   x = 451,686.00