Finding the Third Proportional to 5,221,758 and 7,982,712

Step by Step Solution

1. Step 1: Write the proportion equation
   5,221,758 : 7,982,712 = 7,982,712 : x
2. Step 2: Convert to fraction form
   5,221,758/7,982,712 = 7,982,712/x
3. Step 3: Cross multiply
   5,221,758x = 7,982,712 × 7,982,712
4. Step 4: Simplify right side
   5,221,758x = 63,723,690,874,944
5. Step 5: Solve for x
   x = 63,723,690,874,944/5,221,758
6. Step 6: Final answer
   x = 12,203,493.70