Finding the Third Proportional to 197,364 and 300,978

Step by Step Solution

1. Step 1: Write the proportion equation
   197,364 : 300,978 = 300,978 : x
2. Step 2: Convert to fraction form
   197,364/300,978 = 300,978/x
3. Step 3: Cross multiply
   197,364x = 300,978 × 300,978
4. Step 4: Simplify right side
   197,364x = 90,587,756,484
5. Step 5: Solve for x
   x = 90,587,756,484/197,364
6. Step 6: Final answer
   x = 458,988.25