Finding the Third Proportional to 869,578 and 1,143,492

Step by Step Solution

1. Step 1: Write the proportion equation
   869,578 : 1,143,492 = 1,143,492 : x
2. Step 2: Convert to fraction form
   869,578/1,143,492 = 1,143,492/x
3. Step 3: Cross multiply
   869,578x = 1,143,492 × 1,143,492
4. Step 4: Simplify right side
   869,578x = 1,307,573,954,064
5. Step 5: Solve for x
   x = 1,307,573,954,064/869,578
6. Step 6: Final answer
   x = 1,503,687.94