Finding the Third Proportional to 7,917,162 and 13,101,921

Step by Step Solution

1. Step 1: Write the proportion equation
   7,917,162 : 13,101,921 = 13,101,921 : x
2. Step 2: Convert to fraction form
   7,917,162/13,101,921 = 13,101,921/x
3. Step 3: Cross multiply
   7,917,162x = 13,101,921 × 13,101,921
4. Step 4: Simplify right side
   7,917,162x = 171,660,333,890,241
5. Step 5: Solve for x
   x = 171,660,333,890,241/7,917,162
6. Step 6: Final answer
   x = 21,682,053.98