Finding the Third Proportional to 3,558,644 and 7,369,629

Step by Step Solution

1. Step 1: Write the proportion equation
   3,558,644 : 7,369,629 = 7,369,629 : x
2. Step 2: Convert to fraction form
   3,558,644/7,369,629 = 7,369,629/x
3. Step 3: Cross multiply
   3,558,644x = 7,369,629 × 7,369,629
4. Step 4: Simplify right side
   3,558,644x = 54,311,431,597,641
5. Step 5: Solve for x
   x = 54,311,431,597,641/3,558,644
6. Step 6: Final answer
   x = 15,261,833.33