Finding the Third Proportional to 2,538,336 and 5,539,689

Step by Step Solution

1. Step 1: Write the proportion equation
   2,538,336 : 5,539,689 = 5,539,689 : x
2. Step 2: Convert to fraction form
   2,538,336/5,539,689 = 5,539,689/x
3. Step 3: Cross multiply
   2,538,336x = 5,539,689 × 5,539,689
4. Step 4: Simplify right side
   2,538,336x = 30,688,154,216,721
5. Step 5: Solve for x
   x = 30,688,154,216,721/2,538,336
6. Step 6: Final answer
   x = 12,089,870.77