Finding the Third Proportional to 172,566 and 353,494.50

Step by Step Solution

1. Step 1: Write the proportion equation
   172,566 : 353,494.50 = 353,494.50 : x
2. Step 2: Convert to fraction form
   172,566/353,494.50 = 353,494.50/x
3. Step 3: Cross multiply
   172,566x = 353,494.50 × 353,494.50
4. Step 4: Simplify right side
   172,566x = 124,958,361,530.25
5. Step 5: Solve for x
   x = 124,958,361,530.25/172,566
6. Step 6: Final answer
   x = 724,119.24