Finding the Third Proportional to 58,436 and 127,988

Step by Step Solution

1. Step 1: Write the proportion equation
   58,436 : 127,988 = 127,988 : x
2. Step 2: Convert to fraction form
   58,436/127,988 = 127,988/x
3. Step 3: Cross multiply
   58,436x = 127,988 × 127,988
4. Step 4: Simplify right side
   58,436x = 16,380,928,144
5. Step 5: Solve for x
   x = 16,380,928,144/58,436
6. Step 6: Final answer
   x = 280,322.54