Finding the Third Proportional to 190,042 and 300,907

Step by Step Solution

1. Step 1: Write the proportion equation
   190,042 : 300,907 = 300,907 : x
2. Step 2: Convert to fraction form
   190,042/300,907 = 300,907/x
3. Step 3: Cross multiply
   190,042x = 300,907 × 300,907
4. Step 4: Simplify right side
   190,042x = 90,545,022,649
5. Step 5: Solve for x
   x = 90,545,022,649/190,042
6. Step 6: Final answer
   x = 476,447.43