Finding the Third Proportional to 5,218,497 and 7,962,719

Step by Step Solution

1. Step 1: Write the proportion equation
   5,218,497 : 7,962,719 = 7,962,719 : x
2. Step 2: Convert to fraction form
   5,218,497/7,962,719 = 7,962,719/x
3. Step 3: Cross multiply
   5,218,497x = 7,962,719 × 7,962,719
4. Step 4: Simplify right side
   5,218,497x = 63,404,893,872,961
5. Step 5: Solve for x
   x = 63,404,893,872,961/5,218,497
6. Step 6: Final answer
   x = 12,150,029.76