Finding the Third Proportional to 89,391 and 195,850.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,391 : 195,850.50 = 195,850.50 : x
2. Step 2: Convert to fraction form
   89,391/195,850.50 = 195,850.50/x
3. Step 3: Cross multiply
   89,391x = 195,850.50 × 195,850.50
4. Step 4: Simplify right side
   89,391x = 38,357,418,350.25
5. Step 5: Solve for x
   x = 38,357,418,350.25/89,391
6. Step 6: Final answer
   x = 429,097.09