Finding the Third Proportional to 108,613.50 and 172,749

Step by Step Solution

1. Step 1: Write the proportion equation
   108,613.50 : 172,749 = 172,749 : x
2. Step 2: Convert to fraction form
   108,613.50/172,749 = 172,749/x
3. Step 3: Cross multiply
   108,613.50x = 172,749 × 172,749
4. Step 4: Simplify right side
   108,613.50x = 29,842,217,001
5. Step 5: Solve for x
   x = 29,842,217,001/108,613.50
6. Step 6: Final answer
   x = 274,756.06