Finding the Third Proportional to 404,224 and 627,660

Step by Step Solution

1. Step 1: Write the proportion equation
   404,224 : 627,660 = 627,660 : x
2. Step 2: Convert to fraction form
   404,224/627,660 = 627,660/x
3. Step 3: Cross multiply
   404,224x = 627,660 × 627,660
4. Step 4: Simplify right side
   404,224x = 393,957,075,600
5. Step 5: Solve for x
   x = 393,957,075,600/404,224
6. Step 6: Final answer
   x = 974,600.90