Finding the Third Proportional to 214,842.38 and 329,128.31

Step by Step Solution

1. Step 1: Write the proportion equation
   214,842.38 : 329,128.31 = 329,128.31 : x
2. Step 2: Convert to fraction form
   214,842.38/329,128.31 = 329,128.31/x
3. Step 3: Cross multiply
   214,842.38x = 329,128.31 × 329,128.31
4. Step 4: Simplify right side
   214,842.38x = 108,325,446,089.10
5. Step 5: Solve for x
   x = 108,325,446,089.10/214,842.38
6. Step 6: Final answer
   x = 504,208.94