Finding the Third Proportional to 242,516.75 and 326,250

Step by Step Solution

1. Step 1: Write the proportion equation
   242,516.75 : 326,250 = 326,250 : x
2. Step 2: Convert to fraction form
   242,516.75/326,250 = 326,250/x
3. Step 3: Cross multiply
   242,516.75x = 326,250 × 326,250
4. Step 4: Simplify right side
   242,516.75x = 106,439,062,500
5. Step 5: Solve for x
   x = 106,439,062,500/242,516.75
6. Step 6: Final answer
   x = 438,893.65