Finding the Third Proportional to 108,069.50 and 173,636.50

Step by Step Solution

1. Step 1: Write the proportion equation
   108,069.50 : 173,636.50 = 173,636.50 : x
2. Step 2: Convert to fraction form
   108,069.50/173,636.50 = 173,636.50/x
3. Step 3: Cross multiply
   108,069.50x = 173,636.50 × 173,636.50
4. Step 4: Simplify right side
   108,069.50x = 30,149,634,132.25
5. Step 5: Solve for x
   x = 30,149,634,132.25/108,069.50
6. Step 6: Final answer
   x = 278,983.75