Finding the Third Proportional to 9,724,980 and 21,162,408

Step by Step Solution

1. Step 1: Write the proportion equation
   9,724,980 : 21,162,408 = 21,162,408 : x
2. Step 2: Convert to fraction form
   9,724,980/21,162,408 = 21,162,408/x
3. Step 3: Cross multiply
   9,724,980x = 21,162,408 × 21,162,408
4. Step 4: Simplify right side
   9,724,980x = 447,847,512,358,464
5. Step 5: Solve for x
   x = 447,847,512,358,464/9,724,980
6. Step 6: Final answer
   x = 46,051,252.79