Finding the Third Proportional to 200,022 and 426,828

Step by Step Solution

1. Step 1: Write the proportion equation
   200,022 : 426,828 = 426,828 : x
2. Step 2: Convert to fraction form
   200,022/426,828 = 426,828/x
3. Step 3: Cross multiply
   200,022x = 426,828 × 426,828
4. Step 4: Simplify right side
   200,022x = 182,182,141,584
5. Step 5: Solve for x
   x = 182,182,141,584/200,022
6. Step 6: Final answer
   x = 910,810.52