Finding the Third Proportional to 296,942.63 and 403,434

Step by Step Solution

1. Step 1: Write the proportion equation
   296,942.63 : 403,434 = 403,434 : x
2. Step 2: Convert to fraction form
   296,942.63/403,434 = 403,434/x
3. Step 3: Cross multiply
   296,942.63x = 403,434 × 403,434
4. Step 4: Simplify right side
   296,942.63x = 162,758,992,356
5. Step 5: Solve for x
   x = 162,758,992,356/296,942.63
6. Step 6: Final answer
   x = 548,115.96