Finding the Third Proportional to 81,940 and 173,480

Step by Step Solution

1. Step 1: Write the proportion equation
   81,940 : 173,480 = 173,480 : x
2. Step 2: Convert to fraction form
   81,940/173,480 = 173,480/x
3. Step 3: Cross multiply
   81,940x = 173,480 × 173,480
4. Step 4: Simplify right side
   81,940x = 30,095,310,400
5. Step 5: Solve for x
   x = 30,095,310,400/81,940
6. Step 6: Final answer
   x = 367,284.73