Finding the Third Proportional to 401,226 and 836,077.50

Step by Step Solution

1. Step 1: Write the proportion equation
   401,226 : 836,077.50 = 836,077.50 : x
2. Step 2: Convert to fraction form
   401,226/836,077.50 = 836,077.50/x
3. Step 3: Cross multiply
   401,226x = 836,077.50 × 836,077.50
4. Step 4: Simplify right side
   401,226x = 699,025,586,006.25
5. Step 5: Solve for x
   x = 699,025,586,006.25/401,226
6. Step 6: Final answer
   x = 1,742,224.05