Finding the Third Proportional to 57,988 and 89,601

Step by Step Solution

1. Step 1: Write the proportion equation
   57,988 : 89,601 = 89,601 : x
2. Step 2: Convert to fraction form
   57,988/89,601 = 89,601/x
3. Step 3: Cross multiply
   57,988x = 89,601 × 89,601
4. Step 4: Simplify right side
   57,988x = 8,028,339,201
5. Step 5: Solve for x
   x = 8,028,339,201/57,988
6. Step 6: Final answer
   x = 138,448.29