Finding the Third Proportional to 442,314 and 667,136.25

Step by Step Solution

1. Step 1: Write the proportion equation
   442,314 : 667,136.25 = 667,136.25 : x
2. Step 2: Convert to fraction form
   442,314/667,136.25 = 667,136.25/x
3. Step 3: Cross multiply
   442,314x = 667,136.25 × 667,136.25
4. Step 4: Simplify right side
   442,314x = 445,070,776,064.06
5. Step 5: Solve for x
   x = 445,070,776,064.06/442,314
6. Step 6: Final answer
   x = 1,006,232.62