Finding the Third Proportional to 3,651,660 and 7,880,676

Step by Step Solution

1. Step 1: Write the proportion equation
   3,651,660 : 7,880,676 = 7,880,676 : x
2. Step 2: Convert to fraction form
   3,651,660/7,880,676 = 7,880,676/x
3. Step 3: Cross multiply
   3,651,660x = 7,880,676 × 7,880,676
4. Step 4: Simplify right side
   3,651,660x = 62,105,054,216,976
5. Step 5: Solve for x
   x = 62,105,054,216,976/3,651,660
6. Step 6: Final answer
   x = 17,007,348.50