Finding the Third Proportional to 295,488 and 443,128

Step by Step Solution

1. Step 1: Write the proportion equation
   295,488 : 443,128 = 443,128 : x
2. Step 2: Convert to fraction form
   295,488/443,128 = 443,128/x
3. Step 3: Cross multiply
   295,488x = 443,128 × 443,128
4. Step 4: Simplify right side
   295,488x = 196,362,424,384
5. Step 5: Solve for x
   x = 196,362,424,384/295,488
6. Step 6: Final answer
   x = 664,536.04