Finding the Third Proportional to 262,128 and 562,488

Step by Step Solution

1. Step 1: Write the proportion equation
   262,128 : 562,488 = 562,488 : x
2. Step 2: Convert to fraction form
   262,128/562,488 = 562,488/x
3. Step 3: Cross multiply
   262,128x = 562,488 × 562,488
4. Step 4: Simplify right side
   262,128x = 316,392,750,144
5. Step 5: Solve for x
   x = 316,392,750,144/262,128
6. Step 6: Final answer
   x = 1,207,016.23