Finding the Third Proportional to 55,183.50 and 87,459.75

Step by Step Solution

1. Step 1: Write the proportion equation
   55,183.50 : 87,459.75 = 87,459.75 : x
2. Step 2: Convert to fraction form
   55,183.50/87,459.75 = 87,459.75/x
3. Step 3: Cross multiply
   55,183.50x = 87,459.75 × 87,459.75
4. Step 4: Simplify right side
   55,183.50x = 7,649,207,870.06
5. Step 5: Solve for x
   x = 7,649,207,870.06/55,183.50
6. Step 6: Final answer
   x = 138,614.04