Finding the Third Proportional to 2,218,449 and 3,509,784

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218,449 : 3,509,784 = 3,509,784 : x
2. Step 2: Convert to fraction form
   2,218,449/3,509,784 = 3,509,784/x
3. Step 3: Cross multiply
   2,218,449x = 3,509,784 × 3,509,784
4. Step 4: Simplify right side
   2,218,449x = 12,318,583,726,656
5. Step 5: Solve for x
   x = 12,318,583,726,656/2,218,449
6. Step 6: Final answer
   x = 5,552,791.04