Finding the Third Proportional to 89,559 and 196,350.75

Step by Step Solution

1. Step 1: Write the proportion equation
   89,559 : 196,350.75 = 196,350.75 : x
2. Step 2: Convert to fraction form
   89,559/196,350.75 = 196,350.75/x
3. Step 3: Cross multiply
   89,559x = 196,350.75 × 196,350.75
4. Step 4: Simplify right side
   89,559x = 38,553,617,025.56
5. Step 5: Solve for x
   x = 38,553,617,025.56/89,559
6. Step 6: Final answer
   x = 430,482.89