Finding the Third Proportional to 230,040 and 309,744

Step by Step Solution

1. Step 1: Write the proportion equation
   230,040 : 309,744 = 309,744 : x
2. Step 2: Convert to fraction form
   230,040/309,744 = 309,744/x
3. Step 3: Cross multiply
   230,040x = 309,744 × 309,744
4. Step 4: Simplify right side
   230,040x = 95,941,345,536
5. Step 5: Solve for x
   x = 95,941,345,536/230,040
6. Step 6: Final answer
   x = 417,063.75