Finding the Third Proportional to 2,120,928 and 3,212,286

Step by Step Solution

1. Step 1: Write the proportion equation
   2,120,928 : 3,212,286 = 3,212,286 : x
2. Step 2: Convert to fraction form
   2,120,928/3,212,286 = 3,212,286/x
3. Step 3: Cross multiply
   2,120,928x = 3,212,286 × 3,212,286
4. Step 4: Simplify right side
   2,120,928x = 10,318,781,345,796
5. Step 5: Solve for x
   x = 10,318,781,345,796/2,120,928
6. Step 6: Final answer
   x = 4,865,220.01