Finding the Third Proportional to 616,396 and 1,324,456

Step by Step Solution

1. Step 1: Write the proportion equation
   616,396 : 1,324,456 = 1,324,456 : x
2. Step 2: Convert to fraction form
   616,396/1,324,456 = 1,324,456/x
3. Step 3: Cross multiply
   616,396x = 1,324,456 × 1,324,456
4. Step 4: Simplify right side
   616,396x = 1,754,183,695,936
5. Step 5: Solve for x
   x = 1,754,183,695,936/616,396
6. Step 6: Final answer
   x = 2,845,871.32