Finding the Third Proportional to 42,442 and 89,529

Step by Step Solution

1. Step 1: Write the proportion equation
   42,442 : 89,529 = 89,529 : x
2. Step 2: Convert to fraction form
   42,442/89,529 = 89,529/x
3. Step 3: Cross multiply
   42,442x = 89,529 × 89,529
4. Step 4: Simplify right side
   42,442x = 8,015,441,841
5. Step 5: Solve for x
   x = 8,015,441,841/42,442
6. Step 6: Final answer
   x = 188,856.36