Finding the Third Proportional to 8,242,914 and 12,609,811

Step by Step Solution

1. Step 1: Write the proportion equation
   8,242,914 : 12,609,811 = 12,609,811 : x
2. Step 2: Convert to fraction form
   8,242,914/12,609,811 = 12,609,811/x
3. Step 3: Cross multiply
   8,242,914x = 12,609,811 × 12,609,811
4. Step 4: Simplify right side
   8,242,914x = 159,007,333,455,721
5. Step 5: Solve for x
   x = 159,007,333,455,721/8,242,914
6. Step 6: Final answer
   x = 19,290,184.69