Finding the Third Proportional to 90,287.50 and 194,450

Step by Step Solution

1. Step 1: Write the proportion equation
   90,287.50 : 194,450 = 194,450 : x
2. Step 2: Convert to fraction form
   90,287.50/194,450 = 194,450/x
3. Step 3: Cross multiply
   90,287.50x = 194,450 × 194,450
4. Step 4: Simplify right side
   90,287.50x = 37,810,802,500
5. Step 5: Solve for x
   x = 37,810,802,500/90,287.50
6. Step 6: Final answer
   x = 418,782.25