Finding the Third Proportional to 207,504 and 300,240

Step by Step Solution

1. Step 1: Write the proportion equation
   207,504 : 300,240 = 300,240 : x
2. Step 2: Convert to fraction form
   207,504/300,240 = 300,240/x
3. Step 3: Cross multiply
   207,504x = 300,240 × 300,240
4. Step 4: Simplify right side
   207,504x = 90,144,057,600
5. Step 5: Solve for x
   x = 90,144,057,600/207,504
6. Step 6: Final answer
   x = 434,420.82