Finding the Third Proportional to 28,118 and 57,640

Step by Step Solution

1. Step 1: Write the proportion equation
   28,118 : 57,640 = 57,640 : x
2. Step 2: Convert to fraction form
   28,118/57,640 = 57,640/x
3. Step 3: Cross multiply
   28,118x = 57,640 × 57,640
4. Step 4: Simplify right side
   28,118x = 3,322,369,600
5. Step 5: Solve for x
   x = 3,322,369,600/28,118
6. Step 6: Final answer
   x = 118,158.11