Finding the Third Proportional to 415,906 and 851,484.75

Step by Step Solution

1. Step 1: Write the proportion equation
   415,906 : 851,484.75 = 851,484.75 : x
2. Step 2: Convert to fraction form
   415,906/851,484.75 = 851,484.75/x
3. Step 3: Cross multiply
   415,906x = 851,484.75 × 851,484.75
4. Step 4: Simplify right side
   415,906x = 725,026,279,482.56
5. Step 5: Solve for x
   x = 725,026,279,482.56/415,906
6. Step 6: Final answer
   x = 1,743,245.54