Finding the Third Proportional to 140,860 and 308,414

Step by Step Solution

1. Step 1: Write the proportion equation
   140,860 : 308,414 = 308,414 : x
2. Step 2: Convert to fraction form
   140,860/308,414 = 308,414/x
3. Step 3: Cross multiply
   140,860x = 308,414 × 308,414
4. Step 4: Simplify right side
   140,860x = 95,119,195,396
5. Step 5: Solve for x
   x = 95,119,195,396/140,860
6. Step 6: Final answer
   x = 675,274.71