Finding the Third Proportional to 54,128 and 116,248

Step by Step Solution

1. Step 1: Write the proportion equation
   54,128 : 116,248 = 116,248 : x
2. Step 2: Convert to fraction form
   54,128/116,248 = 116,248/x
3. Step 3: Cross multiply
   54,128x = 116,248 × 116,248
4. Step 4: Simplify right side
   54,128x = 13,513,597,504
5. Step 5: Solve for x
   x = 13,513,597,504/54,128
6. Step 6: Final answer
   x = 249,660.02