Finding the Third Proportional to 254,924 and 404,884

Step by Step Solution

1. Step 1: Write the proportion equation
   254,924 : 404,884 = 404,884 : x
2. Step 2: Convert to fraction form
   254,924/404,884 = 404,884/x
3. Step 3: Cross multiply
   254,924x = 404,884 × 404,884
4. Step 4: Simplify right side
   254,924x = 163,931,053,456
5. Step 5: Solve for x
   x = 163,931,053,456/254,924
6. Step 6: Final answer
   x = 643,058.53