Finding the Third Proportional to 412,180 and 868,636

Step by Step Solution

1. Step 1: Write the proportion equation
   412,180 : 868,636 = 868,636 : x
2. Step 2: Convert to fraction form
   412,180/868,636 = 868,636/x
3. Step 3: Cross multiply
   412,180x = 868,636 × 868,636
4. Step 4: Simplify right side
   412,180x = 754,528,500,496
5. Step 5: Solve for x
   x = 754,528,500,496/412,180
6. Step 6: Final answer
   x = 1,830,580.09