Finding the Third Proportional to 108,359.50 and 143,781.50

Step by Step Solution

1. Step 1: Write the proportion equation
   108,359.50 : 143,781.50 = 143,781.50 : x
2. Step 2: Convert to fraction form
   108,359.50/143,781.50 = 143,781.50/x
3. Step 3: Cross multiply
   108,359.50x = 143,781.50 × 143,781.50
4. Step 4: Simplify right side
   108,359.50x = 20,673,119,742.25
5. Step 5: Solve for x
   x = 20,673,119,742.25/108,359.50
6. Step 6: Final answer
   x = 190,782.72