Finding the Third Proportional to 54,806.50 and 117,931

Step by Step Solution

1. Step 1: Write the proportion equation
   54,806.50 : 117,931 = 117,931 : x
2. Step 2: Convert to fraction form
   54,806.50/117,931 = 117,931/x
3. Step 3: Cross multiply
   54,806.50x = 117,931 × 117,931
4. Step 4: Simplify right side
   54,806.50x = 13,907,720,761
5. Step 5: Solve for x
   x = 13,907,720,761/54,806.50
6. Step 6: Final answer
   x = 253,760.43