Finding the Third Proportional to 89,626.50 and 196,479

Step by Step Solution

1. Step 1: Write the proportion equation
   89,626.50 : 196,479 = 196,479 : x
2. Step 2: Convert to fraction form
   89,626.50/196,479 = 196,479/x
3. Step 3: Cross multiply
   89,626.50x = 196,479 × 196,479
4. Step 4: Simplify right side
   89,626.50x = 38,603,997,441
5. Step 5: Solve for x
   x = 38,603,997,441/89,626.50
6. Step 6: Final answer
   x = 430,720.80