Finding the Third Proportional to 142,945.38 and 304,379

Step by Step Solution

1. Step 1: Write the proportion equation
   142,945.38 : 304,379 = 304,379 : x
2. Step 2: Convert to fraction form
   142,945.38/304,379 = 304,379/x
3. Step 3: Cross multiply
   142,945.38x = 304,379 × 304,379
4. Step 4: Simplify right side
   142,945.38x = 92,646,575,641
5. Step 5: Solve for x
   x = 92,646,575,641/142,945.38
6. Step 6: Final answer
   x = 648,125.73