Finding the Third Proportional to 140,199 and 300,081

Step by Step Solution

1. Step 1: Write the proportion equation
   140,199 : 300,081 = 300,081 : x
2. Step 2: Convert to fraction form
   140,199/300,081 = 300,081/x
3. Step 3: Cross multiply
   140,199x = 300,081 × 300,081
4. Step 4: Simplify right side
   140,199x = 90,048,606,561
5. Step 5: Solve for x
   x = 90,048,606,561/140,199
6. Step 6: Final answer
   x = 642,291.36