Finding the Third Proportional to 136,993.50 and 214,956

Step by Step Solution

1. Step 1: Write the proportion equation
   136,993.50 : 214,956 = 214,956 : x
2. Step 2: Convert to fraction form
   136,993.50/214,956 = 214,956/x
3. Step 3: Cross multiply
   136,993.50x = 214,956 × 214,956
4. Step 4: Simplify right side
   136,993.50x = 46,206,081,936
5. Step 5: Solve for x
   x = 46,206,081,936/136,993.50
6. Step 6: Final answer
   x = 337,286.67