Finding the Third Proportional to 146,808 and 317,674.50

Step by Step Solution

1. Step 1: Write the proportion equation
   146,808 : 317,674.50 = 317,674.50 : x
2. Step 2: Convert to fraction form
   146,808/317,674.50 = 317,674.50/x
3. Step 3: Cross multiply
   146,808x = 317,674.50 × 317,674.50
4. Step 4: Simplify right side
   146,808x = 100,917,087,950.25
5. Step 5: Solve for x
   x = 100,917,087,950.25/146,808
6. Step 6: Final answer
   x = 687,408.64