Finding the Third Proportional to 102,021.50 and 143,415.25

Step by Step Solution

1. Step 1: Write the proportion equation
   102,021.50 : 143,415.25 = 143,415.25 : x
2. Step 2: Convert to fraction form
   102,021.50/143,415.25 = 143,415.25/x
3. Step 3: Cross multiply
   102,021.50x = 143,415.25 × 143,415.25
4. Step 4: Simplify right side
   102,021.50x = 20,567,933,932.56
5. Step 5: Solve for x
   x = 20,567,933,932.56/102,021.50
6. Step 6: Final answer
   x = 201,603.92