Finding the Third Proportional to 89,845.50 and 196,458

Step by Step Solution

1. Step 1: Write the proportion equation
   89,845.50 : 196,458 = 196,458 : x
2. Step 2: Convert to fraction form
   89,845.50/196,458 = 196,458/x
3. Step 3: Cross multiply
   89,845.50x = 196,458 × 196,458
4. Step 4: Simplify right side
   89,845.50x = 38,595,745,764
5. Step 5: Solve for x
   x = 38,595,745,764/89,845.50
6. Step 6: Final answer
   x = 429,579.06