Finding the Third Proportional to 143,434.50 and 210,075

Step by Step Solution

1. Step 1: Write the proportion equation
   143,434.50 : 210,075 = 210,075 : x
2. Step 2: Convert to fraction form
   143,434.50/210,075 = 210,075/x
3. Step 3: Cross multiply
   143,434.50x = 210,075 × 210,075
4. Step 4: Simplify right side
   143,434.50x = 44,131,505,625
5. Step 5: Solve for x
   x = 44,131,505,625/143,434.50
6. Step 6: Final answer
   x = 307,677.06