Finding the Third Proportional to 57,168 and 87,938

Step by Step Solution

1. Step 1: Write the proportion equation
   57,168 : 87,938 = 87,938 : x
2. Step 2: Convert to fraction form
   57,168/87,938 = 87,938/x
3. Step 3: Cross multiply
   57,168x = 87,938 × 87,938
4. Step 4: Simplify right side
   57,168x = 7,733,091,844
5. Step 5: Solve for x
   x = 7,733,091,844/57,168
6. Step 6: Final answer
   x = 135,269.59