Finding the Third Proportional to 116,128 and 173,740

Step by Step Solution

1. Step 1: Write the proportion equation
   116,128 : 173,740 = 173,740 : x
2. Step 2: Convert to fraction form
   116,128/173,740 = 173,740/x
3. Step 3: Cross multiply
   116,128x = 173,740 × 173,740
4. Step 4: Simplify right side
   116,128x = 30,185,587,600
5. Step 5: Solve for x
   x = 30,185,587,600/116,128
6. Step 6: Final answer
   x = 259,933.76