Finding the Third Proportional to 3,428,452 and 7,372,872

Step by Step Solution

1. Step 1: Write the proportion equation
   3,428,452 : 7,372,872 = 7,372,872 : x
2. Step 2: Convert to fraction form
   3,428,452/7,372,872 = 7,372,872/x
3. Step 3: Cross multiply
   3,428,452x = 7,372,872 × 7,372,872
4. Step 4: Simplify right side
   3,428,452x = 54,359,241,528,384
5. Step 5: Solve for x
   x = 54,359,241,528,384/3,428,452
6. Step 6: Final answer
   x = 15,855,331.07