Finding the Third Proportional to 42,369 and 90,366

Step by Step Solution

1. Step 1: Write the proportion equation
   42,369 : 90,366 = 90,366 : x
2. Step 2: Convert to fraction form
   42,369/90,366 = 90,366/x
3. Step 3: Cross multiply
   42,369x = 90,366 × 90,366
4. Step 4: Simplify right side
   42,369x = 8,166,013,956
5. Step 5: Solve for x
   x = 8,166,013,956/42,369
6. Step 6: Final answer
   x = 192,735.58