Finding the Third Proportional to 20,986,444 and 30,879,546

Step by Step Solution

1. Step 1: Write the proportion equation
   20,986,444 : 30,879,546 = 30,879,546 : x
2. Step 2: Convert to fraction form
   20,986,444/30,879,546 = 30,879,546/x
3. Step 3: Cross multiply
   20,986,444x = 30,879,546 × 30,879,546
4. Step 4: Simplify right side
   20,986,444x = 953,546,361,166,116
5. Step 5: Solve for x
   x = 953,546,361,166,116/20,986,444
6. Step 6: Final answer
   x = 45,436,299.79