Finding the Third Proportional to 4,581,447 and 9,870,996

Step by Step Solution

1. Step 1: Write the proportion equation
   4,581,447 : 9,870,996 = 9,870,996 : x
2. Step 2: Convert to fraction form
   4,581,447/9,870,996 = 9,870,996/x
3. Step 3: Cross multiply
   4,581,447x = 9,870,996 × 9,870,996
4. Step 4: Simplify right side
   4,581,447x = 97,436,562,032,016
5. Step 5: Solve for x
   x = 97,436,562,032,016/4,581,447
6. Step 6: Final answer
   x = 21,267,639.25