Finding the Third Proportional to 31,799 and 50,345

Step by Step Solution

1. Step 1: Write the proportion equation
   31,799 : 50,345 = 50,345 : x
2. Step 2: Convert to fraction form
   31,799/50,345 = 50,345/x
3. Step 3: Cross multiply
   31,799x = 50,345 × 50,345
4. Step 4: Simplify right side
   31,799x = 2,534,619,025
5. Step 5: Solve for x
   x = 2,534,619,025/31,799
6. Step 6: Final answer
   x = 79,707.51