Finding the Third Proportional to 42,556 and 90,492

Step by Step Solution

1. Step 1: Write the proportion equation
   42,556 : 90,492 = 90,492 : x
2. Step 2: Convert to fraction form
   42,556/90,492 = 90,492/x
3. Step 3: Cross multiply
   42,556x = 90,492 × 90,492
4. Step 4: Simplify right side
   42,556x = 8,188,802,064
5. Step 5: Solve for x
   x = 8,188,802,064/42,556
6. Step 6: Final answer
   x = 192,424.15