Finding the Third Proportional to 869,576 and 1,143,488

Step by Step Solution

1. Step 1: Write the proportion equation
   869,576 : 1,143,488 = 1,143,488 : x
2. Step 2: Convert to fraction form
   869,576/1,143,488 = 1,143,488/x
3. Step 3: Cross multiply
   869,576x = 1,143,488 × 1,143,488
4. Step 4: Simplify right side
   869,576x = 1,307,564,806,144
5. Step 5: Solve for x
   x = 1,307,564,806,144/869,576
6. Step 6: Final answer
   x = 1,503,680.88