Finding the Third Proportional to 300,704 and 699,200

Step by Step Solution

1. Step 1: Write the proportion equation
   300,704 : 699,200 = 699,200 : x
2. Step 2: Convert to fraction form
   300,704/699,200 = 699,200/x
3. Step 3: Cross multiply
   300,704x = 699,200 × 699,200
4. Step 4: Simplify right side
   300,704x = 488,880,640,000
5. Step 5: Solve for x
   x = 488,880,640,000/300,704
6. Step 6: Final answer
   x = 1,625,786.95