Finding the Third Proportional to 3,780,812 and 8,296,456

Step by Step Solution

1. Step 1: Write the proportion equation
   3,780,812 : 8,296,456 = 8,296,456 : x
2. Step 2: Convert to fraction form
   3,780,812/8,296,456 = 8,296,456/x
3. Step 3: Cross multiply
   3,780,812x = 8,296,456 × 8,296,456
4. Step 4: Simplify right side
   3,780,812x = 68,831,182,159,936
5. Step 5: Solve for x
   x = 68,831,182,159,936/3,780,812
6. Step 6: Final answer
   x = 18,205,396.66