Finding the Third Proportional to 478,576 and 1,006,728

Step by Step Solution

1. Step 1: Write the proportion equation
   478,576 : 1,006,728 = 1,006,728 : x
2. Step 2: Convert to fraction form
   478,576/1,006,728 = 1,006,728/x
3. Step 3: Cross multiply
   478,576x = 1,006,728 × 1,006,728
4. Step 4: Simplify right side
   478,576x = 1,013,501,265,984
5. Step 5: Solve for x
   x = 1,013,501,265,984/478,576
6. Step 6: Final answer
   x = 2,117,743.61