Finding the Third Proportional to 171,822 and 355,429.50

Step by Step Solution

1. Step 1: Write the proportion equation
   171,822 : 355,429.50 = 355,429.50 : x
2. Step 2: Convert to fraction form
   171,822/355,429.50 = 355,429.50/x
3. Step 3: Cross multiply
   171,822x = 355,429.50 × 355,429.50
4. Step 4: Simplify right side
   171,822x = 126,330,129,470.25
5. Step 5: Solve for x
   x = 126,330,129,470.25/171,822
6. Step 6: Final answer
   x = 735,238.38