Finding the Third Proportional to 1,555,240 and 2,223,996

Step by Step Solution

1. Step 1: Write the proportion equation
   1,555,240 : 2,223,996 = 2,223,996 : x
2. Step 2: Convert to fraction form
   1,555,240/2,223,996 = 2,223,996/x
3. Step 3: Cross multiply
   1,555,240x = 2,223,996 × 2,223,996
4. Step 4: Simplify right side
   1,555,240x = 4,946,158,208,016
5. Step 5: Solve for x
   x = 4,946,158,208,016/1,555,240
6. Step 6: Final answer
   x = 3,180,318.28