Finding the Third Proportional to 1,356,618 and 2,159,464

Step by Step Solution

1. Step 1: Write the proportion equation
   1,356,618 : 2,159,464 = 2,159,464 : x
2. Step 2: Convert to fraction form
   1,356,618/2,159,464 = 2,159,464/x
3. Step 3: Cross multiply
   1,356,618x = 2,159,464 × 2,159,464
4. Step 4: Simplify right side
   1,356,618x = 4,663,284,767,296
5. Step 5: Solve for x
   x = 4,663,284,767,296/1,356,618
6. Step 6: Final answer
   x = 3,437,433.95