Finding the Third Proportional to 1,242,122 and 2,661,308

Step by Step Solution

1. Step 1: Write the proportion equation
   1,242,122 : 2,661,308 = 2,661,308 : x
2. Step 2: Convert to fraction form
   1,242,122/2,661,308 = 2,661,308/x
3. Step 3: Cross multiply
   1,242,122x = 2,661,308 × 2,661,308
4. Step 4: Simplify right side
   1,242,122x = 7,082,560,270,864
5. Step 5: Solve for x
   x = 7,082,560,270,864/1,242,122
6. Step 6: Final answer
   x = 5,701,984.40