Finding the Third Proportional to 3,428,461 and 7,372,891

Step by Step Solution

1. Step 1: Write the proportion equation
   3,428,461 : 7,372,891 = 7,372,891 : x
2. Step 2: Convert to fraction form
   3,428,461/7,372,891 = 7,372,891/x
3. Step 3: Cross multiply
   3,428,461x = 7,372,891 × 7,372,891
4. Step 4: Simplify right side
   3,428,461x = 54,359,521,697,881
5. Step 5: Solve for x
   x = 54,359,521,697,881/3,428,461
6. Step 6: Final answer
   x = 15,855,371.17