Finding the Third Proportional to 1,287,441 and 1,947,728

Step by Step Solution

1. Step 1: Write the proportion equation
   1,287,441 : 1,947,728 = 1,947,728 : x
2. Step 2: Convert to fraction form
   1,287,441/1,947,728 = 1,947,728/x
3. Step 3: Cross multiply
   1,287,441x = 1,947,728 × 1,947,728
4. Step 4: Simplify right side
   1,287,441x = 3,793,644,361,984
5. Step 5: Solve for x
   x = 3,793,644,361,984/1,287,441
6. Step 6: Final answer
   x = 2,946,654.92