Finding the Third Proportional to 412,185 and 868,650

Step by Step Solution

1. Step 1: Write the proportion equation
   412,185 : 868,650 = 868,650 : x
2. Step 2: Convert to fraction form
   412,185/868,650 = 868,650/x
3. Step 3: Cross multiply
   412,185x = 868,650 × 868,650
4. Step 4: Simplify right side
   412,185x = 754,552,822,500
5. Step 5: Solve for x
   x = 754,552,822,500/412,185
6. Step 6: Final answer
   x = 1,830,616.89