Finding the Third Proportional to 59,955.50 and 86,618

Step by Step Solution

1. Step 1: Write the proportion equation
   59,955.50 : 86,618 = 86,618 : x
2. Step 2: Convert to fraction form
   59,955.50/86,618 = 86,618/x
3. Step 3: Cross multiply
   59,955.50x = 86,618 × 86,618
4. Step 4: Simplify right side
   59,955.50x = 7,502,677,924
5. Step 5: Solve for x
   x = 7,502,677,924/59,955.50
6. Step 6: Final answer
   x = 125,137.44