Finding the Third Proportional to 767,240 and 1,686,760

Step by Step Solution

1. Step 1: Write the proportion equation
   767,240 : 1,686,760 = 1,686,760 : x
2. Step 2: Convert to fraction form
   767,240/1,686,760 = 1,686,760/x
3. Step 3: Cross multiply
   767,240x = 1,686,760 × 1,686,760
4. Step 4: Simplify right side
   767,240x = 2,845,159,297,600
5. Step 5: Solve for x
   x = 2,845,159,297,600/767,240
6. Step 6: Final answer
   x = 3,708,304.18