Finding the Third Proportional to 3,591,903 and 7,681,902

Step by Step Solution

1. Step 1: Write the proportion equation
   3,591,903 : 7,681,902 = 7,681,902 : x
2. Step 2: Convert to fraction form
   3,591,903/7,681,902 = 7,681,902/x
3. Step 3: Cross multiply
   3,591,903x = 7,681,902 × 7,681,902
4. Step 4: Simplify right side
   3,591,903x = 59,011,618,337,604
5. Step 5: Solve for x
   x = 59,011,618,337,604/3,591,903
6. Step 6: Final answer
   x = 16,429,067.92