Finding the Third Proportional to 4,015,968 and 8,614,272

Step by Step Solution

1. Step 1: Write the proportion equation
   4,015,968 : 8,614,272 = 8,614,272 : x
2. Step 2: Convert to fraction form
   4,015,968/8,614,272 = 8,614,272/x
3. Step 3: Cross multiply
   4,015,968x = 8,614,272 × 8,614,272
4. Step 4: Simplify right side
   4,015,968x = 74,205,682,089,984
5. Step 5: Solve for x
   x = 74,205,682,089,984/4,015,968
6. Step 6: Final answer
   x = 18,477,657.71