Finding the Third Proportional to 91,940 and 140,582

Step by Step Solution

1. Step 1: Write the proportion equation
   91,940 : 140,582 = 140,582 : x
2. Step 2: Convert to fraction form
   91,940/140,582 = 140,582/x
3. Step 3: Cross multiply
   91,940x = 140,582 × 140,582
4. Step 4: Simplify right side
   91,940x = 19,763,298,724
5. Step 5: Solve for x
   x = 19,763,298,724/91,940
6. Step 6: Final answer
   x = 214,958.65