Finding the Third Proportional to 124,678 and 275,606

Step by Step Solution

1. Step 1: Write the proportion equation
   124,678 : 275,606 = 275,606 : x
2. Step 2: Convert to fraction form
   124,678/275,606 = 275,606/x
3. Step 3: Cross multiply
   124,678x = 275,606 × 275,606
4. Step 4: Simplify right side
   124,678x = 75,958,667,236
5. Step 5: Solve for x
   x = 75,958,667,236/124,678
6. Step 6: Final answer
   x = 609,238.74