Finding the Third Proportional to 42,330 and 90,285

Step by Step Solution

1. Step 1: Write the proportion equation
   42,330 : 90,285 = 90,285 : x
2. Step 2: Convert to fraction form
   42,330/90,285 = 90,285/x
3. Step 3: Cross multiply
   42,330x = 90,285 × 90,285
4. Step 4: Simplify right side
   42,330x = 8,151,381,225
5. Step 5: Solve for x
   x = 8,151,381,225/42,330
6. Step 6: Final answer
   x = 192,567.48