Finding the Third Proportional to 108,378 and 143,838

Step by Step Solution

1. Step 1: Write the proportion equation
   108,378 : 143,838 = 143,838 : x
2. Step 2: Convert to fraction form
   108,378/143,838 = 143,838/x
3. Step 3: Cross multiply
   108,378x = 143,838 × 143,838
4. Step 4: Simplify right side
   108,378x = 20,689,370,244
5. Step 5: Solve for x
   x = 20,689,370,244/108,378
6. Step 6: Final answer
   x = 190,900.09