Finding the Third Proportional to 294,619.50 and 450,504

Step by Step Solution

1. Step 1: Write the proportion equation
   294,619.50 : 450,504 = 450,504 : x
2. Step 2: Convert to fraction form
   294,619.50/450,504 = 450,504/x
3. Step 3: Cross multiply
   294,619.50x = 450,504 × 450,504
4. Step 4: Simplify right side
   294,619.50x = 202,953,854,016
5. Step 5: Solve for x
   x = 202,953,854,016/294,619.50
6. Step 6: Final answer
   x = 688,867.69