Finding the Third Proportional to 771,618 and 1,692,642

Step by Step Solution

1. Step 1: Write the proportion equation
   771,618 : 1,692,642 = 1,692,642 : x
2. Step 2: Convert to fraction form
   771,618/1,692,642 = 1,692,642/x
3. Step 3: Cross multiply
   771,618x = 1,692,642 × 1,692,642
4. Step 4: Simplify right side
   771,618x = 2,865,036,940,164
5. Step 5: Solve for x
   x = 2,865,036,940,164/771,618
6. Step 6: Final answer
   x = 3,713,025.02