Finding the Third Proportional to 90,478 and 133,085.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,478 : 133,085.50 = 133,085.50 : x
2. Step 2: Convert to fraction form
   90,478/133,085.50 = 133,085.50/x
3. Step 3: Cross multiply
   90,478x = 133,085.50 × 133,085.50
4. Step 4: Simplify right side
   90,478x = 17,711,750,310.25
5. Step 5: Solve for x
   x = 17,711,750,310.25/90,478
6. Step 6: Final answer
   x = 195,757.54