Finding the Third Proportional to 831,667.50 and 1,158,745.50

Step by Step Solution

1. Step 1: Write the proportion equation
   831,667.50 : 1,158,745.50 = 1,158,745.50 : x
2. Step 2: Convert to fraction form
   831,667.50/1,158,745.50 = 1,158,745.50/x
3. Step 3: Cross multiply
   831,667.50x = 1,158,745.50 × 1,158,745.50
4. Step 4: Simplify right side
   831,667.50x = 1,342,691,133,770.25
5. Step 5: Solve for x
   x = 1,342,691,133,770.25/831,667.50
6. Step 6: Final answer
   x = 1,614,456.66