Finding the Third Proportional to 2,607,921 and 3,989,337

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607,921 : 3,989,337 = 3,989,337 : x
2. Step 2: Convert to fraction form
   2,607,921/3,989,337 = 3,989,337/x
3. Step 3: Cross multiply
   2,607,921x = 3,989,337 × 3,989,337
4. Step 4: Simplify right side
   2,607,921x = 15,914,809,699,569
5. Step 5: Solve for x
   x = 15,914,809,699,569/2,607,921
6. Step 6: Final answer
   x = 6,102,489.19