Finding the Third Proportional to 31,989 and 50,615

Step by Step Solution

1. Step 1: Write the proportion equation
   31,989 : 50,615 = 50,615 : x
2. Step 2: Convert to fraction form
   31,989/50,615 = 50,615/x
3. Step 3: Cross multiply
   31,989x = 50,615 × 50,615
4. Step 4: Simplify right side
   31,989x = 2,561,878,225
5. Step 5: Solve for x
   x = 2,561,878,225/31,989
6. Step 6: Final answer
   x = 80,086.22