Finding the Third Proportional to 144,404 and 316,708

Step by Step Solution

1. Step 1: Write the proportion equation
   144,404 : 316,708 = 316,708 : x
2. Step 2: Convert to fraction form
   144,404/316,708 = 316,708/x
3. Step 3: Cross multiply
   144,404x = 316,708 × 316,708
4. Step 4: Simplify right side
   144,404x = 100,303,957,264
5. Step 5: Solve for x
   x = 100,303,957,264/144,404
6. Step 6: Final answer
   x = 694,606.50