Finding the Third Proportional to 562,686 and 1,221,492

Step by Step Solution

1. Step 1: Write the proportion equation
   562,686 : 1,221,492 = 1,221,492 : x
2. Step 2: Convert to fraction form
   562,686/1,221,492 = 1,221,492/x
3. Step 3: Cross multiply
   562,686x = 1,221,492 × 1,221,492
4. Step 4: Simplify right side
   562,686x = 1,492,042,706,064
5. Step 5: Solve for x
   x = 1,492,042,706,064/562,686
6. Step 6: Final answer
   x = 2,651,643.56