Finding the Third Proportional to 147,282 and 317,107.50

Step by Step Solution

1. Step 1: Write the proportion equation
   147,282 : 317,107.50 = 317,107.50 : x
2. Step 2: Convert to fraction form
   147,282/317,107.50 = 317,107.50/x
3. Step 3: Cross multiply
   147,282x = 317,107.50 × 317,107.50
4. Step 4: Simplify right side
   147,282x = 100,557,166,556.25
5. Step 5: Solve for x
   x = 100,557,166,556.25/147,282
6. Step 6: Final answer
   x = 682,752.59