Finding the Third Proportional to 143,419.50 and 191,556

Step by Step Solution

1. Step 1: Write the proportion equation
   143,419.50 : 191,556 = 191,556 : x
2. Step 2: Convert to fraction form
   143,419.50/191,556 = 191,556/x
3. Step 3: Cross multiply
   143,419.50x = 191,556 × 191,556
4. Step 4: Simplify right side
   143,419.50x = 36,693,701,136
5. Step 5: Solve for x
   x = 36,693,701,136/143,419.50
6. Step 6: Final answer
   x = 255,848.76