Finding the Third Proportional to 3,651,663 and 7,809,897

Step by Step Solution

1. Step 1: Write the proportion equation
   3,651,663 : 7,809,897 = 7,809,897 : x
2. Step 2: Convert to fraction form
   3,651,663/7,809,897 = 7,809,897/x
3. Step 3: Cross multiply
   3,651,663x = 7,809,897 × 7,809,897
4. Step 4: Simplify right side
   3,651,663x = 60,994,491,150,609
5. Step 5: Solve for x
   x = 60,994,491,150,609/3,651,663
6. Step 6: Final answer
   x = 16,703,209.24