Finding the Third Proportional to 616,790 and 1,315,012

Step by Step Solution

1. Step 1: Write the proportion equation
   616,790 : 1,315,012 = 1,315,012 : x
2. Step 2: Convert to fraction form
   616,790/1,315,012 = 1,315,012/x
3. Step 3: Cross multiply
   616,790x = 1,315,012 × 1,315,012
4. Step 4: Simplify right side
   616,790x = 1,729,256,560,144
5. Step 5: Solve for x
   x = 1,729,256,560,144/616,790
6. Step 6: Final answer
   x = 2,803,639.10