Finding the Third Proportional to 67,622 and 145,210

Step by Step Solution

1. Step 1: Write the proportion equation
   67,622 : 145,210 = 145,210 : x
2. Step 2: Convert to fraction form
   67,622/145,210 = 145,210/x
3. Step 3: Cross multiply
   67,622x = 145,210 × 145,210
4. Step 4: Simplify right side
   67,622x = 21,085,944,100
5. Step 5: Solve for x
   x = 21,085,944,100/67,622
6. Step 6: Final answer
   x = 311,820.77