Finding the Third Proportional to 200,068 and 426,920

Step by Step Solution

1. Step 1: Write the proportion equation
   200,068 : 426,920 = 426,920 : x
2. Step 2: Convert to fraction form
   200,068/426,920 = 426,920/x
3. Step 3: Cross multiply
   200,068x = 426,920 × 426,920
4. Step 4: Simplify right side
   200,068x = 182,260,686,400
5. Step 5: Solve for x
   x = 182,260,686,400/200,068
6. Step 6: Final answer
   x = 910,993.69