Finding the Third Proportional to 222,726 and 341,145

Step by Step Solution

1. Step 1: Write the proportion equation
   222,726 : 341,145 = 341,145 : x
2. Step 2: Convert to fraction form
   222,726/341,145 = 341,145/x
3. Step 3: Cross multiply
   222,726x = 341,145 × 341,145
4. Step 4: Simplify right side
   222,726x = 116,379,911,025
5. Step 5: Solve for x
   x = 116,379,911,025/222,726
6. Step 6: Final answer
   x = 522,525.04