Finding the Third Proportional to 55,111.50 and 82,545.75

Step by Step Solution

1. Step 1: Write the proportion equation
   55,111.50 : 82,545.75 = 82,545.75 : x
2. Step 2: Convert to fraction form
   55,111.50/82,545.75 = 82,545.75/x
3. Step 3: Cross multiply
   55,111.50x = 82,545.75 × 82,545.75
4. Step 4: Simplify right side
   55,111.50x = 6,813,800,843.06
5. Step 5: Solve for x
   x = 6,813,800,843.06/55,111.50
6. Step 6: Final answer
   x = 123,636.64