Finding the Third Proportional to 42,351 and 89,399.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,351 : 89,399.50 = 89,399.50 : x
2. Step 2: Convert to fraction form
   42,351/89,399.50 = 89,399.50/x
3. Step 3: Cross multiply
   42,351x = 89,399.50 × 89,399.50
4. Step 4: Simplify right side
   42,351x = 7,992,270,600.25
5. Step 5: Solve for x
   x = 7,992,270,600.25/42,351
6. Step 6: Final answer
   x = 188,715.04