Finding the Third Proportional to 273,618 and 587,695.50

Step by Step Solution

1. Step 1: Write the proportion equation
   273,618 : 587,695.50 = 587,695.50 : x
2. Step 2: Convert to fraction form
   273,618/587,695.50 = 587,695.50/x
3. Step 3: Cross multiply
   273,618x = 587,695.50 × 587,695.50
4. Step 4: Simplify right side
   273,618x = 345,386,000,720.25
5. Step 5: Solve for x
   x = 345,386,000,720.25/273,618
6. Step 6: Final answer
   x = 1,262,292.69