Finding the Third Proportional to 3,630,663 and 7,821,495

Step by Step Solution

1. Step 1: Write the proportion equation
   3,630,663 : 7,821,495 = 7,821,495 : x
2. Step 2: Convert to fraction form
   3,630,663/7,821,495 = 7,821,495/x
3. Step 3: Cross multiply
   3,630,663x = 7,821,495 × 7,821,495
4. Step 4: Simplify right side
   3,630,663x = 61,175,784,035,025
5. Step 5: Solve for x
   x = 61,175,784,035,025/3,630,663
6. Step 6: Final answer
   x = 16,849,755.55