Finding the Third Proportional to 7,981,682 and 12,171,801

Step by Step Solution

1. Step 1: Write the proportion equation
   7,981,682 : 12,171,801 = 12,171,801 : x
2. Step 2: Convert to fraction form
   7,981,682/12,171,801 = 12,171,801/x
3. Step 3: Cross multiply
   7,981,682x = 12,171,801 × 12,171,801
4. Step 4: Simplify right side
   7,981,682x = 148,152,739,583,601
5. Step 5: Solve for x
   x = 148,152,739,583,601/7,981,682
6. Step 6: Final answer
   x = 18,561,593.86