Finding the Third Proportional to 415,953 and 851,620.50

Step by Step Solution

1. Step 1: Write the proportion equation
   415,953 : 851,620.50 = 851,620.50 : x
2. Step 2: Convert to fraction form
   415,953/851,620.50 = 851,620.50/x
3. Step 3: Cross multiply
   415,953x = 851,620.50 × 851,620.50
4. Step 4: Simplify right side
   415,953x = 725,257,476,020.25
5. Step 5: Solve for x
   x = 725,257,476,020.25/415,953
6. Step 6: Final answer
   x = 1,743,604.39