Finding the Third Proportional to 90,619.50 and 133,256.25

Step by Step Solution

1. Step 1: Write the proportion equation
   90,619.50 : 133,256.25 = 133,256.25 : x
2. Step 2: Convert to fraction form
   90,619.50/133,256.25 = 133,256.25/x
3. Step 3: Cross multiply
   90,619.50x = 133,256.25 × 133,256.25
4. Step 4: Simplify right side
   90,619.50x = 17,757,228,164.06
5. Step 5: Solve for x
   x = 17,757,228,164.06/90,619.50
6. Step 6: Final answer
   x = 195,953.72