Finding the Third Proportional to 5,644,082 and 8,518,611

Step by Step Solution

1. Step 1: Write the proportion equation
   5,644,082 : 8,518,611 = 8,518,611 : x
2. Step 2: Convert to fraction form
   5,644,082/8,518,611 = 8,518,611/x
3. Step 3: Cross multiply
   5,644,082x = 8,518,611 × 8,518,611
4. Step 4: Simplify right side
   5,644,082x = 72,566,733,369,321
5. Step 5: Solve for x
   x = 72,566,733,369,321/5,644,082
6. Step 6: Final answer
   x = 12,857,136.62