Finding the Third Proportional to 394,845 and 635,872.50

Step by Step Solution

1. Step 1: Write the proportion equation
   394,845 : 635,872.50 = 635,872.50 : x
2. Step 2: Convert to fraction form
   394,845/635,872.50 = 635,872.50/x
3. Step 3: Cross multiply
   394,845x = 635,872.50 × 635,872.50
4. Step 4: Simplify right side
   394,845x = 404,333,836,256.25
5. Step 5: Solve for x
   x = 404,333,836,256.25/394,845
6. Step 6: Final answer
   x = 1,024,031.80