Finding the Third Proportional to 400,122 and 613,504.50

Step by Step Solution

1. Step 1: Write the proportion equation
   400,122 : 613,504.50 = 613,504.50 : x
2. Step 2: Convert to fraction form
   400,122/613,504.50 = 613,504.50/x
3. Step 3: Cross multiply
   400,122x = 613,504.50 × 613,504.50
4. Step 4: Simplify right side
   400,122x = 376,387,771,520.25
5. Step 5: Solve for x
   x = 376,387,771,520.25/400,122
6. Step 6: Final answer
   x = 940,682.52