Finding the Third Proportional to 57,993 and 89,607

Step by Step Solution

1. Step 1: Write the proportion equation
   57,993 : 89,607 = 89,607 : x
2. Step 2: Convert to fraction form
   57,993/89,607 = 89,607/x
3. Step 3: Cross multiply
   57,993x = 89,607 × 89,607
4. Step 4: Simplify right side
   57,993x = 8,029,414,449
5. Step 5: Solve for x
   x = 8,029,414,449/57,993
6. Step 6: Final answer
   x = 138,454.89