Finding the Third Proportional to 8,242,612 and 12,608,682

Step by Step Solution

1. Step 1: Write the proportion equation
   8,242,612 : 12,608,682 = 12,608,682 : x
2. Step 2: Convert to fraction form
   8,242,612/12,608,682 = 12,608,682/x
3. Step 3: Cross multiply
   8,242,612x = 12,608,682 × 12,608,682
4. Step 4: Simplify right side
   8,242,612x = 158,978,861,777,124
5. Step 5: Solve for x
   x = 158,978,861,777,124/8,242,612
6. Step 6: Final answer
   x = 19,287,437.26