Finding the Third Proportional to 103,811.50 and 143,808

Step by Step Solution

1. Step 1: Write the proportion equation
   103,811.50 : 143,808 = 143,808 : x
2. Step 2: Convert to fraction form
   103,811.50/143,808 = 143,808/x
3. Step 3: Cross multiply
   103,811.50x = 143,808 × 143,808
4. Step 4: Simplify right side
   103,811.50x = 20,680,740,864
5. Step 5: Solve for x
   x = 20,680,740,864/103,811.50
6. Step 6: Final answer
   x = 199,214.35