Finding the Third Proportional to 67,978 and 149,088

Step by Step Solution

1. Step 1: Write the proportion equation
   67,978 : 149,088 = 149,088 : x
2. Step 2: Convert to fraction form
   67,978/149,088 = 149,088/x
3. Step 3: Cross multiply
   67,978x = 149,088 × 149,088
4. Step 4: Simplify right side
   67,978x = 22,227,231,744
5. Step 5: Solve for x
   x = 22,227,231,744/67,978
6. Step 6: Final answer
   x = 326,976.84