Finding the Third Proportional to 403,828 and 627,082

Step by Step Solution

1. Step 1: Write the proportion equation
   403,828 : 627,082 = 627,082 : x
2. Step 2: Convert to fraction form
   403,828/627,082 = 627,082/x
3. Step 3: Cross multiply
   403,828x = 627,082 × 627,082
4. Step 4: Simplify right side
   403,828x = 393,231,834,724
5. Step 5: Solve for x
   x = 393,231,834,724/403,828
6. Step 6: Final answer
   x = 973,760.70