Finding the Third Proportional to 3,838,784 and 8,400,736

Step by Step Solution

1. Step 1: Write the proportion equation
   3,838,784 : 8,400,736 = 8,400,736 : x
2. Step 2: Convert to fraction form
   3,838,784/8,400,736 = 8,400,736/x
3. Step 3: Cross multiply
   3,838,784x = 8,400,736 × 8,400,736
4. Step 4: Simplify right side
   3,838,784x = 70,572,365,341,696
5. Step 5: Solve for x
   x = 70,572,365,341,696/3,838,784
6. Step 6: Final answer
   x = 18,384,041.75