Finding the Third Proportional to 57,888 and 85,200

Step by Step Solution

1. Step 1: Write the proportion equation
   57,888 : 85,200 = 85,200 : x
2. Step 2: Convert to fraction form
   57,888/85,200 = 85,200/x
3. Step 3: Cross multiply
   57,888x = 85,200 × 85,200
4. Step 4: Simplify right side
   57,888x = 7,259,040,000
5. Step 5: Solve for x
   x = 7,259,040,000/57,888
6. Step 6: Final answer
   x = 125,398.01