Finding the Third Proportional to 301,728 and 661,488

Step by Step Solution

1. Step 1: Write the proportion equation
   301,728 : 661,488 = 661,488 : x
2. Step 2: Convert to fraction form
   301,728/661,488 = 661,488/x
3. Step 3: Cross multiply
   301,728x = 661,488 × 661,488
4. Step 4: Simplify right side
   301,728x = 437,566,374,144
5. Step 5: Solve for x
   x = 437,566,374,144/301,728
6. Step 6: Final answer
   x = 1,450,201.42