Finding the Third Proportional to 200,028 and 433,256

Step by Step Solution

1. Step 1: Write the proportion equation
   200,028 : 433,256 = 433,256 : x
2. Step 2: Convert to fraction form
   200,028/433,256 = 433,256/x
3. Step 3: Cross multiply
   200,028x = 433,256 × 433,256
4. Step 4: Simplify right side
   200,028x = 187,710,761,536
5. Step 5: Solve for x
   x = 187,710,761,536/200,028
6. Step 6: Final answer
   x = 938,422.43