Finding the Third Proportional to 254,933 and 404,897.50

Step by Step Solution

1. Step 1: Write the proportion equation
   254,933 : 404,897.50 = 404,897.50 : x
2. Step 2: Convert to fraction form
   254,933/404,897.50 = 404,897.50/x
3. Step 3: Cross multiply
   254,933x = 404,897.50 × 404,897.50
4. Step 4: Simplify right side
   254,933x = 163,941,985,506.25
5. Step 5: Solve for x
   x = 163,941,985,506.25/254,933
6. Step 6: Final answer
   x = 643,078.71