Finding the Third Proportional to 2,143,144 and 3,242,268

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143,144 : 3,242,268 = 3,242,268 : x
2. Step 2: Convert to fraction form
   2,143,144/3,242,268 = 3,242,268/x
3. Step 3: Cross multiply
   2,143,144x = 3,242,268 × 3,242,268
4. Step 4: Simplify right side
   2,143,144x = 10,512,301,783,824
5. Step 5: Solve for x
   x = 10,512,301,783,824/2,143,144
6. Step 6: Final answer
   x = 4,905,084.21