Finding the Third Proportional to 43,380.50 and 65,618

Step by Step Solution

1. Step 1: Write the proportion equation
   43,380.50 : 65,618 = 65,618 : x
2. Step 2: Convert to fraction form
   43,380.50/65,618 = 65,618/x
3. Step 3: Cross multiply
   43,380.50x = 65,618 × 65,618
4. Step 4: Simplify right side
   43,380.50x = 4,305,721,924
5. Step 5: Solve for x
   x = 4,305,721,924/43,380.50
6. Step 6: Final answer
   x = 99,254.78