Finding the Third Proportional to 108,138 and 144,649.50

Step by Step Solution

1. Step 1: Write the proportion equation
   108,138 : 144,649.50 = 144,649.50 : x
2. Step 2: Convert to fraction form
   108,138/144,649.50 = 144,649.50/x
3. Step 3: Cross multiply
   108,138x = 144,649.50 × 144,649.50
4. Step 4: Simplify right side
   108,138x = 20,923,477,850.25
5. Step 5: Solve for x
   x = 20,923,477,850.25/108,138
6. Step 6: Final answer
   x = 193,488.67