Finding the Third Proportional to 3,946,942 and 8,632,028

Step by Step Solution

1. Step 1: Write the proportion equation
   3,946,942 : 8,632,028 = 8,632,028 : x
2. Step 2: Convert to fraction form
   3,946,942/8,632,028 = 8,632,028/x
3. Step 3: Cross multiply
   3,946,942x = 8,632,028 × 8,632,028
4. Step 4: Simplify right side
   3,946,942x = 74,511,907,392,784
5. Step 5: Solve for x
   x = 74,511,907,392,784/3,946,942
6. Step 6: Final answer
   x = 18,878,389.24