Finding the Third Proportional to 90,450 and 196,967

Step by Step Solution

1. Step 1: Write the proportion equation
   90,450 : 196,967 = 196,967 : x
2. Step 2: Convert to fraction form
   90,450/196,967 = 196,967/x
3. Step 3: Cross multiply
   90,450x = 196,967 × 196,967
4. Step 4: Simplify right side
   90,450x = 38,795,999,089
5. Step 5: Solve for x
   x = 38,795,999,089/90,450
6. Step 6: Final answer
   x = 428,922.05