Finding the Third Proportional to 616,788 and 1,315,008

Step by Step Solution

1. Step 1: Write the proportion equation
   616,788 : 1,315,008 = 1,315,008 : x
2. Step 2: Convert to fraction form
   616,788/1,315,008 = 1,315,008/x
3. Step 3: Cross multiply
   616,788x = 1,315,008 × 1,315,008
4. Step 4: Simplify right side
   616,788x = 1,729,246,040,064
5. Step 5: Solve for x
   x = 1,729,246,040,064/616,788
6. Step 6: Final answer
   x = 2,803,631.13