Finding the Third Proportional to 240,298 and 511,654.50

Step by Step Solution

1. Step 1: Write the proportion equation
   240,298 : 511,654.50 = 511,654.50 : x
2. Step 2: Convert to fraction form
   240,298/511,654.50 = 511,654.50/x
3. Step 3: Cross multiply
   240,298x = 511,654.50 × 511,654.50
4. Step 4: Simplify right side
   240,298x = 261,790,327,370.25
5. Step 5: Solve for x
   x = 261,790,327,370.25/240,298
6. Step 6: Final answer
   x = 1,089,440.31