Finding the Third Proportional to 4,823,540 and 7,678,110

Step by Step Solution

1. Step 1: Write the proportion equation
   4,823,540 : 7,678,110 = 7,678,110 : x
2. Step 2: Convert to fraction form
   4,823,540/7,678,110 = 7,678,110/x
3. Step 3: Cross multiply
   4,823,540x = 7,678,110 × 7,678,110
4. Step 4: Simplify right side
   4,823,540x = 58,953,373,172,100
5. Step 5: Solve for x
   x = 58,953,373,172,100/4,823,540
6. Step 6: Final answer
   x = 12,222,013.95