Finding the Third Proportional to 4,147,612 and 8,626,311

Step by Step Solution

1. Step 1: Write the proportion equation
   4,147,612 : 8,626,311 = 8,626,311 : x
2. Step 2: Convert to fraction form
   4,147,612/8,626,311 = 8,626,311/x
3. Step 3: Cross multiply
   4,147,612x = 8,626,311 × 8,626,311
4. Step 4: Simplify right side
   4,147,612x = 74,413,241,468,721
5. Step 5: Solve for x
   x = 74,413,241,468,721/4,147,612
6. Step 6: Final answer
   x = 17,941,225.33