Finding the Third Proportional to 1,272,720 and 1,783,944

Step by Step Solution

1. Step 1: Write the proportion equation
   1,272,720 : 1,783,944 = 1,783,944 : x
2. Step 2: Convert to fraction form
   1,272,720/1,783,944 = 1,783,944/x
3. Step 3: Cross multiply
   1,272,720x = 1,783,944 × 1,783,944
4. Step 4: Simplify right side
   1,272,720x = 3,182,456,195,136
5. Step 5: Solve for x
   x = 3,182,456,195,136/1,272,720
6. Step 6: Final answer
   x = 2,500,515.58