Finding the Third Proportional to 3,636,648 and 7,656,696

Step by Step Solution

1. Step 1: Write the proportion equation
   3,636,648 : 7,656,696 = 7,656,696 : x
2. Step 2: Convert to fraction form
   3,636,648/7,656,696 = 7,656,696/x
3. Step 3: Cross multiply
   3,636,648x = 7,656,696 × 7,656,696
4. Step 4: Simplify right side
   3,636,648x = 58,624,993,636,416
5. Step 5: Solve for x
   x = 58,624,993,636,416/3,636,648
6. Step 6: Final answer
   x = 16,120,612.62