Finding the Third Proportional to 10,987,872 and 16,164,132

Step by Step Solution

1. Step 1: Write the proportion equation
   10,987,872 : 16,164,132 = 16,164,132 : x
2. Step 2: Convert to fraction form
   10,987,872/16,164,132 = 16,164,132/x
3. Step 3: Cross multiply
   10,987,872x = 16,164,132 × 16,164,132
4. Step 4: Simplify right side
   10,987,872x = 261,279,163,313,424
5. Step 5: Solve for x
   x = 261,279,163,313,424/10,987,872
6. Step 6: Final answer
   x = 23,778,868.49