Finding the Third Proportional to 2,115,312 and 3,222,540

Step by Step Solution

1. Step 1: Write the proportion equation
   2,115,312 : 3,222,540 = 3,222,540 : x
2. Step 2: Convert to fraction form
   2,115,312/3,222,540 = 3,222,540/x
3. Step 3: Cross multiply
   2,115,312x = 3,222,540 × 3,222,540
4. Step 4: Simplify right side
   2,115,312x = 10,384,764,051,600
5. Step 5: Solve for x
   x = 10,384,764,051,600/2,115,312
6. Step 6: Final answer
   x = 4,909,329.71