Finding the Third Proportional to 296,399.25 and 623,772.56

Step by Step Solution

1. Step 1: Write the proportion equation
   296,399.25 : 623,772.56 = 623,772.56 : x
2. Step 2: Convert to fraction form
   296,399.25/623,772.56 = 623,772.56/x
3. Step 3: Cross multiply
   296,399.25x = 623,772.56 × 623,772.56
4. Step 4: Simplify right side
   296,399.25x = 389,092,209,727.82
5. Step 5: Solve for x
   x = 389,092,209,727.82/296,399.25
6. Step 6: Final answer
   x = 1,312,730.08