Finding the Third Proportional to 360,271.50 and 552,618

Step by Step Solution

1. Step 1: Write the proportion equation
   360,271.50 : 552,618 = 552,618 : x
2. Step 2: Convert to fraction form
   360,271.50/552,618 = 552,618/x
3. Step 3: Cross multiply
   360,271.50x = 552,618 × 552,618
4. Step 4: Simplify right side
   360,271.50x = 305,386,653,924
5. Step 5: Solve for x
   x = 305,386,653,924/360,271.50
6. Step 6: Final answer
   x = 847,656.99