Finding the Third Proportional to 108,071 and 173,639

Step by Step Solution

1. Step 1: Write the proportion equation
   108,071 : 173,639 = 173,639 : x
2. Step 2: Convert to fraction form
   108,071/173,639 = 173,639/x
3. Step 3: Cross multiply
   108,071x = 173,639 × 173,639
4. Step 4: Simplify right side
   108,071x = 30,150,502,321
5. Step 5: Solve for x
   x = 30,150,502,321/108,071
6. Step 6: Final answer
   x = 278,987.91