Finding the Third Proportional to 140,202 and 300,087

Step by Step Solution

1. Step 1: Write the proportion equation
   140,202 : 300,087 = 300,087 : x
2. Step 2: Convert to fraction form
   140,202/300,087 = 300,087/x
3. Step 3: Cross multiply
   140,202x = 300,087 × 300,087
4. Step 4: Simplify right side
   140,202x = 90,052,207,569
5. Step 5: Solve for x
   x = 90,052,207,569/140,202
6. Step 6: Final answer
   x = 642,303.30