Finding the Third Proportional to 8,367,981 and 12,930,666

Step by Step Solution

1. Step 1: Write the proportion equation
   8,367,981 : 12,930,666 = 12,930,666 : x
2. Step 2: Convert to fraction form
   8,367,981/12,930,666 = 12,930,666/x
3. Step 3: Cross multiply
   8,367,981x = 12,930,666 × 12,930,666
4. Step 4: Simplify right side
   8,367,981x = 167,202,123,203,556
5. Step 5: Solve for x
   x = 167,202,123,203,556/8,367,981
6. Step 6: Final answer
   x = 19,981,178.64