Finding the Third Proportional to 331,242 and 714,970.50

Step by Step Solution

1. Step 1: Write the proportion equation
   331,242 : 714,970.50 = 714,970.50 : x
2. Step 2: Convert to fraction form
   331,242/714,970.50 = 714,970.50/x
3. Step 3: Cross multiply
   331,242x = 714,970.50 × 714,970.50
4. Step 4: Simplify right side
   331,242x = 511,182,815,870.25
5. Step 5: Solve for x
   x = 511,182,815,870.25/331,242
6. Step 6: Final answer
   x = 1,543,230.68