Finding the Third Proportional to 200,870 and 436,692

Step by Step Solution

1. Step 1: Write the proportion equation
   200,870 : 436,692 = 436,692 : x
2. Step 2: Convert to fraction form
   200,870/436,692 = 436,692/x
3. Step 3: Cross multiply
   200,870x = 436,692 × 436,692
4. Step 4: Simplify right side
   200,870x = 190,699,902,864
5. Step 5: Solve for x
   x = 190,699,902,864/200,870
6. Step 6: Final answer
   x = 949,369.76