Finding the Third Proportional to 3,770,784 and 8,139,168

Step by Step Solution

1. Step 1: Write the proportion equation
   3,770,784 : 8,139,168 = 8,139,168 : x
2. Step 2: Convert to fraction form
   3,770,784/8,139,168 = 8,139,168/x
3. Step 3: Cross multiply
   3,770,784x = 8,139,168 × 8,139,168
4. Step 4: Simplify right side
   3,770,784x = 66,246,055,732,224
5. Step 5: Solve for x
   x = 66,246,055,732,224/3,770,784
6. Step 6: Final answer
   x = 17,568,244.62