Finding the Third Proportional to 140,149 and 329,020

Step by Step Solution

1. Step 1: Write the proportion equation
   140,149 : 329,020 = 329,020 : x
2. Step 2: Convert to fraction form
   140,149/329,020 = 329,020/x
3. Step 3: Cross multiply
   140,149x = 329,020 × 329,020
4. Step 4: Simplify right side
   140,149x = 108,254,160,400
5. Step 5: Solve for x
   x = 108,254,160,400/140,149
6. Step 6: Final answer
   x = 772,421.93