Finding the Third Proportional to 379,848 and 810,538.50

Step by Step Solution

1. Step 1: Write the proportion equation
   379,848 : 810,538.50 = 810,538.50 : x
2. Step 2: Convert to fraction form
   379,848/810,538.50 = 810,538.50/x
3. Step 3: Cross multiply
   379,848x = 810,538.50 × 810,538.50
4. Step 4: Simplify right side
   379,848x = 656,972,659,982.25
5. Step 5: Solve for x
   x = 656,972,659,982.25/379,848
6. Step 6: Final answer
   x = 1,729,567.25