Finding the Third Proportional to 3,591,936 and 7,681,968

Step by Step Solution

1. Step 1: Write the proportion equation
   3,591,936 : 7,681,968 = 7,681,968 : x
2. Step 2: Convert to fraction form
   3,591,936/7,681,968 = 7,681,968/x
3. Step 3: Cross multiply
   3,591,936x = 7,681,968 × 7,681,968
4. Step 4: Simplify right side
   3,591,936x = 59,012,632,353,024
5. Step 5: Solve for x
   x = 59,012,632,353,024/3,591,936
6. Step 6: Final answer
   x = 16,429,199.28