Finding the Third Proportional to 140,413.50 and 210,762

Step by Step Solution

1. Step 1: Write the proportion equation
   140,413.50 : 210,762 = 210,762 : x
2. Step 2: Convert to fraction form
   140,413.50/210,762 = 210,762/x
3. Step 3: Cross multiply
   140,413.50x = 210,762 × 210,762
4. Step 4: Simplify right side
   140,413.50x = 44,420,620,644
5. Step 5: Solve for x
   x = 44,420,620,644/140,413.50
6. Step 6: Final answer
   x = 316,355.77