Finding the Third Proportional to 4,147,986 and 8,627,064

Step by Step Solution

1. Step 1: Write the proportion equation
   4,147,986 : 8,627,064 = 8,627,064 : x
2. Step 2: Convert to fraction form
   4,147,986/8,627,064 = 8,627,064/x
3. Step 3: Cross multiply
   4,147,986x = 8,627,064 × 8,627,064
4. Step 4: Simplify right side
   4,147,986x = 74,426,233,260,096
5. Step 5: Solve for x
   x = 74,426,233,260,096/4,147,986
6. Step 6: Final answer
   x = 17,942,739.74