Finding the Third Proportional to 123,240 and 176,104.50

Step by Step Solution

1. Step 1: Write the proportion equation
   123,240 : 176,104.50 = 176,104.50 : x
2. Step 2: Convert to fraction form
   123,240/176,104.50 = 176,104.50/x
3. Step 3: Cross multiply
   123,240x = 176,104.50 × 176,104.50
4. Step 4: Simplify right side
   123,240x = 31,012,794,920.25
5. Step 5: Solve for x
   x = 31,012,794,920.25/123,240
6. Step 6: Final answer
   x = 251,645.53