Finding the Third Proportional to 108,390 and 143,814

Step by Step Solution

1. Step 1: Write the proportion equation
   108,390 : 143,814 = 143,814 : x
2. Step 2: Convert to fraction form
   108,390/143,814 = 143,814/x
3. Step 3: Cross multiply
   108,390x = 143,814 × 143,814
4. Step 4: Simplify right side
   108,390x = 20,682,466,596
5. Step 5: Solve for x
   x = 20,682,466,596/108,390
6. Step 6: Final answer
   x = 190,815.27