Finding the Third Proportional to 300,283.50 and 659,629.50

Step by Step Solution

1. Step 1: Write the proportion equation
   300,283.50 : 659,629.50 = 659,629.50 : x
2. Step 2: Convert to fraction form
   300,283.50/659,629.50 = 659,629.50/x
3. Step 3: Cross multiply
   300,283.50x = 659,629.50 × 659,629.50
4. Step 4: Simplify right side
   300,283.50x = 435,111,077,270.25
5. Step 5: Solve for x
   x = 435,111,077,270.25/300,283.50
6. Step 6: Final answer
   x = 1,449,000.95