Finding the Third Proportional to 3,555,694 and 5,648,469

Step by Step Solution

1. Step 1: Write the proportion equation
   3,555,694 : 5,648,469 = 5,648,469 : x
2. Step 2: Convert to fraction form
   3,555,694/5,648,469 = 5,648,469/x
3. Step 3: Cross multiply
   3,555,694x = 5,648,469 × 5,648,469
4. Step 4: Simplify right side
   3,555,694x = 31,905,202,043,961
5. Step 5: Solve for x
   x = 31,905,202,043,961/3,555,694
6. Step 6: Final answer
   x = 8,972,988.69