Finding the Third Proportional to 418,136 and 631,096

Step by Step Solution

1. Step 1: Write the proportion equation
   418,136 : 631,096 = 631,096 : x
2. Step 2: Convert to fraction form
   418,136/631,096 = 631,096/x
3. Step 3: Cross multiply
   418,136x = 631,096 × 631,096
4. Step 4: Simplify right side
   418,136x = 398,282,161,216
5. Step 5: Solve for x
   x = 398,282,161,216/418,136
6. Step 6: Final answer
   x = 952,518.23