Finding the Third Proportional to 304,066 and 647,500

Step by Step Solution

1. Step 1: Write the proportion equation
   304,066 : 647,500 = 647,500 : x
2. Step 2: Convert to fraction form
   304,066/647,500 = 647,500/x
3. Step 3: Cross multiply
   304,066x = 647,500 × 647,500
4. Step 4: Simplify right side
   304,066x = 419,256,250,000
5. Step 5: Solve for x
   x = 419,256,250,000/304,066
6. Step 6: Final answer
   x = 1,378,833.05