Finding the Third Proportional to 708,912 and 1,555,618

Step by Step Solution

1. Step 1: Write the proportion equation
   708,912 : 1,555,618 = 1,555,618 : x
2. Step 2: Convert to fraction form
   708,912/1,555,618 = 1,555,618/x
3. Step 3: Cross multiply
   708,912x = 1,555,618 × 1,555,618
4. Step 4: Simplify right side
   708,912x = 2,419,947,361,924
5. Step 5: Solve for x
   x = 2,419,947,361,924/708,912
6. Step 6: Final answer
   x = 3,413,607.56