Finding the Third Proportional to 530,222 and 803,055

Step by Step Solution

1. Step 1: Write the proportion equation
   530,222 : 803,055 = 803,055 : x
2. Step 2: Convert to fraction form
   530,222/803,055 = 803,055/x
3. Step 3: Cross multiply
   530,222x = 803,055 × 803,055
4. Step 4: Simplify right side
   530,222x = 644,897,333,025
5. Step 5: Solve for x
   x = 644,897,333,025/530,222
6. Step 6: Final answer
   x = 1,216,277.96