Finding the Third Proportional to 3,428,457 and 7,372,884

Step by Step Solution

1. Step 1: Write the proportion equation
   3,428,457 : 7,372,884 = 7,372,884 : x
2. Step 2: Convert to fraction form
   3,428,457/7,372,884 = 7,372,884/x
3. Step 3: Cross multiply
   3,428,457x = 7,372,884 × 7,372,884
4. Step 4: Simplify right side
   3,428,457x = 54,359,418,477,456
5. Step 5: Solve for x
   x = 54,359,418,477,456/3,428,457
6. Step 6: Final answer
   x = 15,855,359.56