Finding the Third Proportional to 3,494,471 and 7,474,729

Step by Step Solution

1. Step 1: Write the proportion equation
   3,494,471 : 7,474,729 = 7,474,729 : x
2. Step 2: Convert to fraction form
   3,494,471/7,474,729 = 7,474,729/x
3. Step 3: Cross multiply
   3,494,471x = 7,474,729 × 7,474,729
4. Step 4: Simplify right side
   3,494,471x = 55,871,573,623,441
5. Step 5: Solve for x
   x = 55,871,573,623,441/3,494,471
6. Step 6: Final answer
   x = 15,988,564.11