Finding the Third Proportional to 40,700 and 83,836

Step by Step Solution

1. Step 1: Write the proportion equation
   40,700 : 83,836 = 83,836 : x
2. Step 2: Convert to fraction form
   40,700/83,836 = 83,836/x
3. Step 3: Cross multiply
   40,700x = 83,836 × 83,836
4. Step 4: Simplify right side
   40,700x = 7,028,474,896
5. Step 5: Solve for x
   x = 7,028,474,896/40,700
6. Step 6: Final answer
   x = 172,689.80