Finding the Third Proportional to 3,651,663 and 7,880,682

Step by Step Solution

1. Step 1: Write the proportion equation
   3,651,663 : 7,880,682 = 7,880,682 : x
2. Step 2: Convert to fraction form
   3,651,663/7,880,682 = 7,880,682/x
3. Step 3: Cross multiply
   3,651,663x = 7,880,682 × 7,880,682
4. Step 4: Simplify right side
   3,651,663x = 62,105,148,785,124
5. Step 5: Solve for x
   x = 62,105,148,785,124/3,651,663
6. Step 6: Final answer
   x = 17,007,360.42