Finding the Third Proportional to 284,310 and 629,653.50

Step by Step Solution

1. Step 1: Write the proportion equation
   284,310 : 629,653.50 = 629,653.50 : x
2. Step 2: Convert to fraction form
   284,310/629,653.50 = 629,653.50/x
3. Step 3: Cross multiply
   284,310x = 629,653.50 × 629,653.50
4. Step 4: Simplify right side
   284,310x = 396,463,530,062.25
5. Step 5: Solve for x
   x = 396,463,530,062.25/284,310
6. Step 6: Final answer
   x = 1,394,476.21