Finding the Third Proportional to 401,951.50 and 836,979.50

Step by Step Solution

1. Step 1: Write the proportion equation
   401,951.50 : 836,979.50 = 836,979.50 : x
2. Step 2: Convert to fraction form
   401,951.50/836,979.50 = 836,979.50/x
3. Step 3: Cross multiply
   401,951.50x = 836,979.50 × 836,979.50
4. Step 4: Simplify right side
   401,951.50x = 700,534,683,420.25
5. Step 5: Solve for x
   x = 700,534,683,420.25/401,951.50
6. Step 6: Final answer
   x = 1,742,833.86