Finding the Third Proportional to 90,979.50 and 133,498.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,979.50 : 133,498.50 = 133,498.50 : x
2. Step 2: Convert to fraction form
   90,979.50/133,498.50 = 133,498.50/x
3. Step 3: Cross multiply
   90,979.50x = 133,498.50 × 133,498.50
4. Step 4: Simplify right side
   90,979.50x = 17,821,849,502.25
5. Step 5: Solve for x
   x = 17,821,849,502.25/90,979.50
6. Step 6: Final answer
   x = 195,888.63