Finding the Third Proportional to 157,805.72 and 338,221.83

Step by Step Solution

1. Step 1: Write the proportion equation
   157,805.72 : 338,221.83 = 338,221.83 : x
2. Step 2: Convert to fraction form
   157,805.72/338,221.83 = 338,221.83/x
3. Step 3: Cross multiply
   157,805.72x = 338,221.83 × 338,221.83
4. Step 4: Simplify right side
   157,805.72x = 114,394,005,020.22
5. Step 5: Solve for x
   x = 114,394,005,020.22/157,805.72
6. Step 6: Final answer
   x = 724,904.05