Finding the Third Proportional to 5,315,922 and 7,972,155

Step by Step Solution

1. Step 1: Write the proportion equation
   5,315,922 : 7,972,155 = 7,972,155 : x
2. Step 2: Convert to fraction form
   5,315,922/7,972,155 = 7,972,155/x
3. Step 3: Cross multiply
   5,315,922x = 7,972,155 × 7,972,155
4. Step 4: Simplify right side
   5,315,922x = 63,555,255,344,025
5. Step 5: Solve for x
   x = 63,555,255,344,025/5,315,922
6. Step 6: Final answer
   x = 11,955,641.06