Finding the Third Proportional to 428,768 and 650,064

Step by Step Solution

1. Step 1: Write the proportion equation
   428,768 : 650,064 = 650,064 : x
2. Step 2: Convert to fraction form
   428,768/650,064 = 650,064/x
3. Step 3: Cross multiply
   428,768x = 650,064 × 650,064
4. Step 4: Simplify right side
   428,768x = 422,583,204,096
5. Step 5: Solve for x
   x = 422,583,204,096/428,768
6. Step 6: Final answer
   x = 985,575.43