Finding the Third Proportional to 3,258,215 and 7,021,016

Step by Step Solution

1. Step 1: Write the proportion equation
   3,258,215 : 7,021,016 = 7,021,016 : x
2. Step 2: Convert to fraction form
   3,258,215/7,021,016 = 7,021,016/x
3. Step 3: Cross multiply
   3,258,215x = 7,021,016 × 7,021,016
4. Step 4: Simplify right side
   3,258,215x = 49,294,665,672,256
5. Step 5: Solve for x
   x = 49,294,665,672,256/3,258,215
6. Step 6: Final answer
   x = 15,129,347.10