Finding the Third Proportional to 200,919 and 429,801

Step by Step Solution

1. Step 1: Write the proportion equation
   200,919 : 429,801 = 429,801 : x
2. Step 2: Convert to fraction form
   200,919/429,801 = 429,801/x
3. Step 3: Cross multiply
   200,919x = 429,801 × 429,801
4. Step 4: Simplify right side
   200,919x = 184,728,899,601
5. Step 5: Solve for x
   x = 184,728,899,601/200,919
6. Step 6: Final answer
   x = 919,419.76