Finding the Third Proportional to 142,785 and 294,210

Step by Step Solution

1. Step 1: Write the proportion equation
   142,785 : 294,210 = 294,210 : x
2. Step 2: Convert to fraction form
   142,785/294,210 = 294,210/x
3. Step 3: Cross multiply
   142,785x = 294,210 × 294,210
4. Step 4: Simplify right side
   142,785x = 86,559,524,100
5. Step 5: Solve for x
   x = 86,559,524,100/142,785
6. Step 6: Final answer
   x = 606,222.81