Finding the Third Proportional to 9,274,831 and 12,815,830

Step by Step Solution

1. Step 1: Write the proportion equation
   9,274,831 : 12,815,830 = 12,815,830 : x
2. Step 2: Convert to fraction form
   9,274,831/12,815,830 = 12,815,830/x
3. Step 3: Cross multiply
   9,274,831x = 12,815,830 × 12,815,830
4. Step 4: Simplify right side
   9,274,831x = 164,245,498,588,900
5. Step 5: Solve for x
   x = 164,245,498,588,900/9,274,831
6. Step 6: Final answer
   x = 17,708,732.22