Finding the Third Proportional to 140,298 and 300,334

Step by Step Solution

1. Step 1: Write the proportion equation
   140,298 : 300,334 = 300,334 : x
2. Step 2: Convert to fraction form
   140,298/300,334 = 300,334/x
3. Step 3: Cross multiply
   140,298x = 300,334 × 300,334
4. Step 4: Simplify right side
   140,298x = 90,200,511,556
5. Step 5: Solve for x
   x = 90,200,511,556/140,298
6. Step 6: Final answer
   x = 642,920.87