Finding the Third Proportional to 4,031,138 and 8,770,824

Step by Step Solution

1. Step 1: Write the proportion equation
   4,031,138 : 8,770,824 = 8,770,824 : x
2. Step 2: Convert to fraction form
   4,031,138/8,770,824 = 8,770,824/x
3. Step 3: Cross multiply
   4,031,138x = 8,770,824 × 8,770,824
4. Step 4: Simplify right side
   4,031,138x = 76,927,353,638,976
5. Step 5: Solve for x
   x = 76,927,353,638,976/4,031,138
6. Step 6: Final answer
   x = 19,083,284.58