Finding the Third Proportional to 140,949 and 307,336

Step by Step Solution

1. Step 1: Write the proportion equation
   140,949 : 307,336 = 307,336 : x
2. Step 2: Convert to fraction form
   140,949/307,336 = 307,336/x
3. Step 3: Cross multiply
   140,949x = 307,336 × 307,336
4. Step 4: Simplify right side
   140,949x = 94,455,416,896
5. Step 5: Solve for x
   x = 94,455,416,896/140,949
6. Step 6: Final answer
   x = 670,138.96