Finding the Third Proportional to 40,200 and 57,912

Step by Step Solution

1. Step 1: Write the proportion equation
   40,200 : 57,912 = 57,912 : x
2. Step 2: Convert to fraction form
   40,200/57,912 = 57,912/x
3. Step 3: Cross multiply
   40,200x = 57,912 × 57,912
4. Step 4: Simplify right side
   40,200x = 3,353,799,744
5. Step 5: Solve for x
   x = 3,353,799,744/40,200
6. Step 6: Final answer
   x = 83,427.85