Finding the Third Proportional to 401,951 and 836,980

Step by Step Solution

1. Step 1: Write the proportion equation
   401,951 : 836,980 = 836,980 : x
2. Step 2: Convert to fraction form
   401,951/836,980 = 836,980/x
3. Step 3: Cross multiply
   401,951x = 836,980 × 836,980
4. Step 4: Simplify right side
   401,951x = 700,535,520,400
5. Step 5: Solve for x
   x = 700,535,520,400/401,951
6. Step 6: Final answer
   x = 1,742,838.11