Finding the Third Proportional to 8,242,923 and 12,609,162

Step by Step Solution

1. Step 1: Write the proportion equation
   8,242,923 : 12,609,162 = 12,609,162 : x
2. Step 2: Convert to fraction form
   8,242,923/12,609,162 = 12,609,162/x
3. Step 3: Cross multiply
   8,242,923x = 12,609,162 × 12,609,162
4. Step 4: Simplify right side
   8,242,923x = 158,990,966,342,244
5. Step 5: Solve for x
   x = 158,990,966,342,244/8,242,923
6. Step 6: Final answer
   x = 19,288,178.03