Finding the Third Proportional to 443,580 and 627,654

Step by Step Solution

1. Step 1: Write the proportion equation
   443,580 : 627,654 = 627,654 : x
2. Step 2: Convert to fraction form
   443,580/627,654 = 627,654/x
3. Step 3: Cross multiply
   443,580x = 627,654 × 627,654
4. Step 4: Simplify right side
   443,580x = 393,949,543,716
5. Step 5: Solve for x
   x = 393,949,543,716/443,580
6. Step 6: Final answer
   x = 888,113.85