Finding the Third Proportional to 19,485 and 31,379.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,485 : 31,379.50 = 31,379.50 : x
2. Step 2: Convert to fraction form
   19,485/31,379.50 = 31,379.50/x
3. Step 3: Cross multiply
   19,485x = 31,379.50 × 31,379.50
4. Step 4: Simplify right side
   19,485x = 984,673,020.25
5. Step 5: Solve for x
   x = 984,673,020.25/19,485
6. Step 6: Final answer
   x = 50,534.93