Finding the Third Proportional to 1,004,564 and 1,285,230

Step by Step Solution

1. Step 1: Write the proportion equation
   1,004,564 : 1,285,230 = 1,285,230 : x
2. Step 2: Convert to fraction form
   1,004,564/1,285,230 = 1,285,230/x
3. Step 3: Cross multiply
   1,004,564x = 1,285,230 × 1,285,230
4. Step 4: Simplify right side
   1,004,564x = 1,651,816,152,900
5. Step 5: Solve for x
   x = 1,651,816,152,900/1,004,564
6. Step 6: Final answer
   x = 1,644,311.52