Finding the Third Proportional to 321,455.25 and 700,056

Step by Step Solution

1. Step 1: Write the proportion equation
   321,455.25 : 700,056 = 700,056 : x
2. Step 2: Convert to fraction form
   321,455.25/700,056 = 700,056/x
3. Step 3: Cross multiply
   321,455.25x = 700,056 × 700,056
4. Step 4: Simplify right side
   321,455.25x = 490,078,403,136
5. Step 5: Solve for x
   x = 490,078,403,136/321,455.25
6. Step 6: Final answer
   x = 1,524,561.83