Finding the Third Proportional to 3,507,168 and 7,538,400

Step by Step Solution

1. Step 1: Write the proportion equation
   3,507,168 : 7,538,400 = 7,538,400 : x
2. Step 2: Convert to fraction form
   3,507,168/7,538,400 = 7,538,400/x
3. Step 3: Cross multiply
   3,507,168x = 7,538,400 × 7,538,400
4. Step 4: Simplify right side
   3,507,168x = 56,827,474,560,000
5. Step 5: Solve for x
   x = 56,827,474,560,000/3,507,168
6. Step 6: Final answer
   x = 16,203,237.07