Finding the Third Proportional to 135,960 and 191,121.75

Step by Step Solution

1. Step 1: Write the proportion equation
   135,960 : 191,121.75 = 191,121.75 : x
2. Step 2: Convert to fraction form
   135,960/191,121.75 = 191,121.75/x
3. Step 3: Cross multiply
   135,960x = 191,121.75 × 191,121.75
4. Step 4: Simplify right side
   135,960x = 36,527,523,323.06
5. Step 5: Solve for x
   x = 36,527,523,323.06/135,960
6. Step 6: Final answer
   x = 268,663.75