Finding the Third Proportional to 2,115,272 and 3,222,479

Step by Step Solution

1. Step 1: Write the proportion equation
   2,115,272 : 3,222,479 = 3,222,479 : x
2. Step 2: Convert to fraction form
   2,115,272/3,222,479 = 3,222,479/x
3. Step 3: Cross multiply
   2,115,272x = 3,222,479 × 3,222,479
4. Step 4: Simplify right side
   2,115,272x = 10,384,370,905,441
5. Step 5: Solve for x
   x = 10,384,370,905,441/2,115,272
6. Step 6: Final answer
   x = 4,909,236.69