Finding the Third Proportional to 301,173 and 401,510

Step by Step Solution

1. Step 1: Write the proportion equation
   301,173 : 401,510 = 401,510 : x
2. Step 2: Convert to fraction form
   301,173/401,510 = 401,510/x
3. Step 3: Cross multiply
   301,173x = 401,510 × 401,510
4. Step 4: Simplify right side
   301,173x = 161,210,280,100
5. Step 5: Solve for x
   x = 161,210,280,100/301,173
6. Step 6: Final answer
   x = 535,274.68