Finding the Third Proportional to 4,581,444 and 9,870,990

Step by Step Solution

1. Step 1: Write the proportion equation
   4,581,444 : 9,870,990 = 9,870,990 : x
2. Step 2: Convert to fraction form
   4,581,444/9,870,990 = 9,870,990/x
3. Step 3: Cross multiply
   4,581,444x = 9,870,990 × 9,870,990
4. Step 4: Simplify right side
   4,581,444x = 97,436,443,580,100
5. Step 5: Solve for x
   x = 97,436,443,580,100/4,581,444
6. Step 6: Final answer
   x = 21,267,627.32