Finding the Third Proportional to 54,661.50 and 117,711

Step by Step Solution

1. Step 1: Write the proportion equation
   54,661.50 : 117,711 = 117,711 : x
2. Step 2: Convert to fraction form
   54,661.50/117,711 = 117,711/x
3. Step 3: Cross multiply
   54,661.50x = 117,711 × 117,711
4. Step 4: Simplify right side
   54,661.50x = 13,855,879,521
5. Step 5: Solve for x
   x = 13,855,879,521/54,661.50
6. Step 6: Final answer
   x = 253,485.17