Finding the Third Proportional to 57,354 and 89,433

Step by Step Solution

1. Step 1: Write the proportion equation
   57,354 : 89,433 = 89,433 : x
2. Step 2: Convert to fraction form
   57,354/89,433 = 89,433/x
3. Step 3: Cross multiply
   57,354x = 89,433 × 89,433
4. Step 4: Simplify right side
   57,354x = 7,998,261,489
5. Step 5: Solve for x
   x = 7,998,261,489/57,354
6. Step 6: Final answer
   x = 139,454.29