Finding the Third Proportional to 140,234 and 304,128

Step by Step Solution

1. Step 1: Write the proportion equation
   140,234 : 304,128 = 304,128 : x
2. Step 2: Convert to fraction form
   140,234/304,128 = 304,128/x
3. Step 3: Cross multiply
   140,234x = 304,128 × 304,128
4. Step 4: Simplify right side
   140,234x = 92,493,840,384
5. Step 5: Solve for x
   x = 92,493,840,384/140,234
6. Step 6: Final answer
   x = 659,567.87