Finding the Third Proportional to 228,080 and 485,696

Step by Step Solution

1. Step 1: Write the proportion equation
   228,080 : 485,696 = 485,696 : x
2. Step 2: Convert to fraction form
   228,080/485,696 = 485,696/x
3. Step 3: Cross multiply
   228,080x = 485,696 × 485,696
4. Step 4: Simplify right side
   228,080x = 235,900,604,416
5. Step 5: Solve for x
   x = 235,900,604,416/228,080
6. Step 6: Final answer
   x = 1,034,288.87