Finding the Third Proportional to 3,638,162 and 7,921,771

Step by Step Solution

1. Step 1: Write the proportion equation
   3,638,162 : 7,921,771 = 7,921,771 : x
2. Step 2: Convert to fraction form
   3,638,162/7,921,771 = 7,921,771/x
3. Step 3: Cross multiply
   3,638,162x = 7,921,771 × 7,921,771
4. Step 4: Simplify right side
   3,638,162x = 62,754,455,776,441
5. Step 5: Solve for x
   x = 62,754,455,776,441/3,638,162
6. Step 6: Final answer
   x = 17,248,944.87