Finding the Third Proportional to 401,064 and 856,249.50

Step by Step Solution

1. Step 1: Write the proportion equation
   401,064 : 856,249.50 = 856,249.50 : x
2. Step 2: Convert to fraction form
   401,064/856,249.50 = 856,249.50/x
3. Step 3: Cross multiply
   401,064x = 856,249.50 × 856,249.50
4. Step 4: Simplify right side
   401,064x = 733,163,206,250.25
5. Step 5: Solve for x
   x = 733,163,206,250.25/401,064
6. Step 6: Final answer
   x = 1,828,045.41