Finding the Third Proportional to 57,716 and 86,956

Step by Step Solution

1. Step 1: Write the proportion equation
   57,716 : 86,956 = 86,956 : x
2. Step 2: Convert to fraction form
   57,716/86,956 = 86,956/x
3. Step 3: Cross multiply
   57,716x = 86,956 × 86,956
4. Step 4: Simplify right side
   57,716x = 7,561,345,936
5. Step 5: Solve for x
   x = 7,561,345,936/57,716
6. Step 6: Final answer
   x = 131,009.53