Finding the Third Proportional to 3,507,172 and 7,538,408

Step by Step Solution

1. Step 1: Write the proportion equation
   3,507,172 : 7,538,408 = 7,538,408 : x
2. Step 2: Convert to fraction form
   3,507,172/7,538,408 = 7,538,408/x
3. Step 3: Cross multiply
   3,507,172x = 7,538,408 × 7,538,408
4. Step 4: Simplify right side
   3,507,172x = 56,827,595,174,464
5. Step 5: Solve for x
   x = 56,827,595,174,464/3,507,172
6. Step 6: Final answer
   x = 16,203,252.98