Finding the Third Proportional to 3,864,784 and 8,395,510

Step by Step Solution

1. Step 1: Write the proportion equation
   3,864,784 : 8,395,510 = 8,395,510 : x
2. Step 2: Convert to fraction form
   3,864,784/8,395,510 = 8,395,510/x
3. Step 3: Cross multiply
   3,864,784x = 8,395,510 × 8,395,510
4. Step 4: Simplify right side
   3,864,784x = 70,484,588,160,100
5. Step 5: Solve for x
   x = 70,484,588,160,100/3,864,784
6. Step 6: Final answer
   x = 18,237,652.65