Finding the Third Proportional to 65,622.75 and 143,274

Step by Step Solution

1. Step 1: Write the proportion equation
   65,622.75 : 143,274 = 143,274 : x
2. Step 2: Convert to fraction form
   65,622.75/143,274 = 143,274/x
3. Step 3: Cross multiply
   65,622.75x = 143,274 × 143,274
4. Step 4: Simplify right side
   65,622.75x = 20,527,439,076
5. Step 5: Solve for x
   x = 20,527,439,076/65,622.75
6. Step 6: Final answer
   x = 312,809.80