Finding the Third Proportional to 426,879 and 909,061

Step by Step Solution

1. Step 1: Write the proportion equation
   426,879 : 909,061 = 909,061 : x
2. Step 2: Convert to fraction form
   426,879/909,061 = 909,061/x
3. Step 3: Cross multiply
   426,879x = 909,061 × 909,061
4. Step 4: Simplify right side
   426,879x = 826,391,901,721
5. Step 5: Solve for x
   x = 826,391,901,721/426,879
6. Step 6: Final answer
   x = 1,935,892.61