Finding the Third Proportional to 119,403 and 259,886.25

Step by Step Solution

1. Step 1: Write the proportion equation
   119,403 : 259,886.25 = 259,886.25 : x
2. Step 2: Convert to fraction form
   119,403/259,886.25 = 259,886.25/x
3. Step 3: Cross multiply
   119,403x = 259,886.25 × 259,886.25
4. Step 4: Simplify right side
   119,403x = 67,540,862,939.06
5. Step 5: Solve for x
   x = 67,540,862,939.06/119,403
6. Step 6: Final answer
   x = 565,654.66