Finding the Third Proportional to 2,115,374 and 3,222,660

Step by Step Solution

1. Step 1: Write the proportion equation
   2,115,374 : 3,222,660 = 3,222,660 : x
2. Step 2: Convert to fraction form
   2,115,374/3,222,660 = 3,222,660/x
3. Step 3: Cross multiply
   2,115,374x = 3,222,660 × 3,222,660
4. Step 4: Simplify right side
   2,115,374x = 10,385,537,475,600
5. Step 5: Solve for x
   x = 10,385,537,475,600/2,115,374
6. Step 6: Final answer
   x = 4,909,551.44