Finding the Third Proportional to 1,302,509 and 2,815,618

Step by Step Solution

1. Step 1: Write the proportion equation
   1,302,509 : 2,815,618 = 2,815,618 : x
2. Step 2: Convert to fraction form
   1,302,509/2,815,618 = 2,815,618/x
3. Step 3: Cross multiply
   1,302,509x = 2,815,618 × 2,815,618
4. Step 4: Simplify right side
   1,302,509x = 7,927,704,721,924
5. Step 5: Solve for x
   x = 7,927,704,721,924/1,302,509
6. Step 6: Final answer
   x = 6,086,487.48