Finding the Third Proportional to 147,168 and 317,854.50

Step by Step Solution

1. Step 1: Write the proportion equation
   147,168 : 317,854.50 = 317,854.50 : x
2. Step 2: Convert to fraction form
   147,168/317,854.50 = 317,854.50/x
3. Step 3: Cross multiply
   147,168x = 317,854.50 × 317,854.50
4. Step 4: Simplify right side
   147,168x = 101,031,483,170.25
5. Step 5: Solve for x
   x = 101,031,483,170.25/147,168
6. Step 6: Final answer
   x = 686,504.42