Finding the Third Proportional to 8,367,992 and 12,930,680

Step by Step Solution

1. Step 1: Write the proportion equation
   8,367,992 : 12,930,680 = 12,930,680 : x
2. Step 2: Convert to fraction form
   8,367,992/12,930,680 = 12,930,680/x
3. Step 3: Cross multiply
   8,367,992x = 12,930,680 × 12,930,680
4. Step 4: Simplify right side
   8,367,992x = 167,202,485,262,400
5. Step 5: Solve for x
   x = 167,202,485,262,400/8,367,992
6. Step 6: Final answer
   x = 19,981,195.64