Finding the Third Proportional to 179,456 and 423,488

Step by Step Solution

1. Step 1: Write the proportion equation
   179,456 : 423,488 = 423,488 : x
2. Step 2: Convert to fraction form
   179,456/423,488 = 423,488/x
3. Step 3: Cross multiply
   179,456x = 423,488 × 423,488
4. Step 4: Simplify right side
   179,456x = 179,342,086,144
5. Step 5: Solve for x
   x = 179,342,086,144/179,456
6. Step 6: Final answer
   x = 999,365.23