Finding the Third Proportional to 638,226 and 944,723.25

Step by Step Solution

1. Step 1: Write the proportion equation
   638,226 : 944,723.25 = 944,723.25 : x
2. Step 2: Convert to fraction form
   638,226/944,723.25 = 944,723.25/x
3. Step 3: Cross multiply
   638,226x = 944,723.25 × 944,723.25
4. Step 4: Simplify right side
   638,226x = 892,502,019,090.56
5. Step 5: Solve for x
   x = 892,502,019,090.56/638,226
6. Step 6: Final answer
   x = 1,398,410.62