Finding the Third Proportional to 134,556 and 317,185.50

Step by Step Solution

1. Step 1: Write the proportion equation
   134,556 : 317,185.50 = 317,185.50 : x
2. Step 2: Convert to fraction form
   134,556/317,185.50 = 317,185.50/x
3. Step 3: Cross multiply
   134,556x = 317,185.50 × 317,185.50
4. Step 4: Simplify right side
   134,556x = 100,606,641,410.25
5. Step 5: Solve for x
   x = 100,606,641,410.25/134,556
6. Step 6: Final answer
   x = 747,693.46