Finding the Third Proportional to 143,994 and 202,686.75

Step by Step Solution

1. Step 1: Write the proportion equation
   143,994 : 202,686.75 = 202,686.75 : x
2. Step 2: Convert to fraction form
   143,994/202,686.75 = 202,686.75/x
3. Step 3: Cross multiply
   143,994x = 202,686.75 × 202,686.75
4. Step 4: Simplify right side
   143,994x = 41,081,918,625.56
5. Step 5: Solve for x
   x = 41,081,918,625.56/143,994
6. Step 6: Final answer
   x = 285,302.99