Finding the Third Proportional to 2,120,930 and 3,212,289

Step by Step Solution

1. Step 1: Write the proportion equation
   2,120,930 : 3,212,289 = 3,212,289 : x
2. Step 2: Convert to fraction form
   2,120,930/3,212,289 = 3,212,289/x
3. Step 3: Cross multiply
   2,120,930x = 3,212,289 × 3,212,289
4. Step 4: Simplify right side
   2,120,930x = 10,318,800,619,521
5. Step 5: Solve for x
   x = 10,318,800,619,521/2,120,930
6. Step 6: Final answer
   x = 4,865,224.51