Finding the Third Proportional to 222,138 and 469,062

Step by Step Solution

1. Step 1: Write the proportion equation
   222,138 : 469,062 = 469,062 : x
2. Step 2: Convert to fraction form
   222,138/469,062 = 469,062/x
3. Step 3: Cross multiply
   222,138x = 469,062 × 469,062
4. Step 4: Simplify right side
   222,138x = 220,019,159,844
5. Step 5: Solve for x
   x = 220,019,159,844/222,138
6. Step 6: Final answer
   x = 990,461.60