Finding the Third Proportional to 301,172 and 401,508

Step by Step Solution

1. Step 1: Write the proportion equation
   301,172 : 401,508 = 401,508 : x
2. Step 2: Convert to fraction form
   301,172/401,508 = 401,508/x
3. Step 3: Cross multiply
   301,172x = 401,508 × 401,508
4. Step 4: Simplify right side
   301,172x = 161,208,674,064
5. Step 5: Solve for x
   x = 161,208,674,064/301,172
6. Step 6: Final answer
   x = 535,271.12