Finding the Third Proportional to 196,192 and 423,488

Step by Step Solution

1. Step 1: Write the proportion equation
   196,192 : 423,488 = 423,488 : x
2. Step 2: Convert to fraction form
   196,192/423,488 = 423,488/x
3. Step 3: Cross multiply
   196,192x = 423,488 × 423,488
4. Step 4: Simplify right side
   196,192x = 179,342,086,144
5. Step 5: Solve for x
   x = 179,342,086,144/196,192
6. Step 6: Final answer
   x = 914,115.18