Finding the Third Proportional to 779,708 and 1,708,320

Step by Step Solution

1. Step 1: Write the proportion equation
   779,708 : 1,708,320 = 1,708,320 : x
2. Step 2: Convert to fraction form
   779,708/1,708,320 = 1,708,320/x
3. Step 3: Cross multiply
   779,708x = 1,708,320 × 1,708,320
4. Step 4: Simplify right side
   779,708x = 2,918,357,222,400
5. Step 5: Solve for x
   x = 2,918,357,222,400/779,708
6. Step 6: Final answer
   x = 3,742,884.80