Finding the Third Proportional to 570,708 and 1,215,144

Step by Step Solution

1. Step 1: Write the proportion equation
   570,708 : 1,215,144 = 1,215,144 : x
2. Step 2: Convert to fraction form
   570,708/1,215,144 = 1,215,144/x
3. Step 3: Cross multiply
   570,708x = 1,215,144 × 1,215,144
4. Step 4: Simplify right side
   570,708x = 1,476,574,940,736
5. Step 5: Solve for x
   x = 1,476,574,940,736/570,708
6. Step 6: Final answer
   x = 2,587,268.69