Finding the Third Proportional to 144,983.67 and 318,547.69

Step by Step Solution

1. Step 1: Write the proportion equation
   144,983.67 : 318,547.69 = 318,547.69 : x
2. Step 2: Convert to fraction form
   144,983.67/318,547.69 = 318,547.69/x
3. Step 3: Cross multiply
   144,983.67x = 318,547.69 × 318,547.69
4. Step 4: Simplify right side
   144,983.67x = 101,472,629,211.60
5. Step 5: Solve for x
   x = 101,472,629,211.60/144,983.67
6. Step 6: Final answer
   x = 699,890.05