Finding the Third Proportional to 140,490 and 304,308

Step by Step Solution

1. Step 1: Write the proportion equation
   140,490 : 304,308 = 304,308 : x
2. Step 2: Convert to fraction form
   140,490/304,308 = 304,308/x
3. Step 3: Cross multiply
   140,490x = 304,308 × 304,308
4. Step 4: Simplify right side
   140,490x = 92,603,358,864
5. Step 5: Solve for x
   x = 92,603,358,864/140,490
6. Step 6: Final answer
   x = 659,145.55