Finding the Third Proportional to 57,628 and 85,116

Step by Step Solution

1. Step 1: Write the proportion equation
   57,628 : 85,116 = 85,116 : x
2. Step 2: Convert to fraction form
   57,628/85,116 = 85,116/x
3. Step 3: Cross multiply
   57,628x = 85,116 × 85,116
4. Step 4: Simplify right side
   57,628x = 7,244,733,456
5. Step 5: Solve for x
   x = 7,244,733,456/57,628
6. Step 6: Final answer
   x = 125,715.51