Finding the Third Proportional to 140,940 and 317,358

Step by Step Solution

1. Step 1: Write the proportion equation
   140,940 : 317,358 = 317,358 : x
2. Step 2: Convert to fraction form
   140,940/317,358 = 317,358/x
3. Step 3: Cross multiply
   140,940x = 317,358 × 317,358
4. Step 4: Simplify right side
   140,940x = 100,716,100,164
5. Step 5: Solve for x
   x = 100,716,100,164/140,940
6. Step 6: Final answer
   x = 714,602.67