Finding the Third Proportional to 2,115,279 and 3,222,490

Step by Step Solution

1. Step 1: Write the proportion equation
   2,115,279 : 3,222,490 = 3,222,490 : x
2. Step 2: Convert to fraction form
   2,115,279/3,222,490 = 3,222,490/x
3. Step 3: Cross multiply
   2,115,279x = 3,222,490 × 3,222,490
4. Step 4: Simplify right side
   2,115,279x = 10,384,441,800,100
5. Step 5: Solve for x
   x = 10,384,441,800,100/2,115,279
6. Step 6: Final answer
   x = 4,909,253.96