Finding the Third Proportional to 5,221,719 and 7,982,697

Step by Step Solution

1. Step 1: Write the proportion equation
   5,221,719 : 7,982,697 = 7,982,697 : x
2. Step 2: Convert to fraction form
   5,221,719/7,982,697 = 7,982,697/x
3. Step 3: Cross multiply
   5,221,719x = 7,982,697 × 7,982,697
4. Step 4: Simplify right side
   5,221,719x = 63,723,451,393,809
5. Step 5: Solve for x
   x = 63,723,451,393,809/5,221,719
6. Step 6: Final answer
   x = 12,203,538.99