Finding the Third Proportional to 3,787,780 and 8,137,736

Step by Step Solution

1. Step 1: Write the proportion equation
   3,787,780 : 8,137,736 = 8,137,736 : x
2. Step 2: Convert to fraction form
   3,787,780/8,137,736 = 8,137,736/x
3. Step 3: Cross multiply
   3,787,780x = 8,137,736 × 8,137,736
4. Step 4: Simplify right side
   3,787,780x = 66,222,747,205,696
5. Step 5: Solve for x
   x = 66,222,747,205,696/3,787,780
6. Step 6: Final answer
   x = 17,483,261.23