Finding the Third Proportional to 147,404 and 317,956

Step by Step Solution

1. Step 1: Write the proportion equation
   147,404 : 317,956 = 317,956 : x
2. Step 2: Convert to fraction form
   147,404/317,956 = 317,956/x
3. Step 3: Cross multiply
   147,404x = 317,956 × 317,956
4. Step 4: Simplify right side
   147,404x = 101,096,017,936
5. Step 5: Solve for x
   x = 101,096,017,936/147,404
6. Step 6: Final answer
   x = 685,843.11