Finding the Third Proportional to 228,900 and 493,128

Step by Step Solution

1. Step 1: Write the proportion equation
   228,900 : 493,128 = 493,128 : x
2. Step 2: Convert to fraction form
   228,900/493,128 = 493,128/x
3. Step 3: Cross multiply
   228,900x = 493,128 × 493,128
4. Step 4: Simplify right side
   228,900x = 243,175,224,384
5. Step 5: Solve for x
   x = 243,175,224,384/228,900
6. Step 6: Final answer
   x = 1,062,364.46