Finding the Third Proportional to 140,478 and 304,284

Step by Step Solution

1. Step 1: Write the proportion equation
   140,478 : 304,284 = 304,284 : x
2. Step 2: Convert to fraction form
   140,478/304,284 = 304,284/x
3. Step 3: Cross multiply
   140,478x = 304,284 × 304,284
4. Step 4: Simplify right side
   140,478x = 92,588,752,656
5. Step 5: Solve for x
   x = 92,588,752,656/140,478
6. Step 6: Final answer
   x = 659,097.88