Finding the Third Proportional to 415,922.25 and 851,553

Step by Step Solution

1. Step 1: Write the proportion equation
   415,922.25 : 851,553 = 851,553 : x
2. Step 2: Convert to fraction form
   415,922.25/851,553 = 851,553/x
3. Step 3: Cross multiply
   415,922.25x = 851,553 × 851,553
4. Step 4: Simplify right side
   415,922.25x = 725,142,511,809
5. Step 5: Solve for x
   x = 725,142,511,809/415,922.25
6. Step 6: Final answer
   x = 1,743,456.89