Finding the Third Proportional to 210,040 and 460,906

Step by Step Solution

1. Step 1: Write the proportion equation
   210,040 : 460,906 = 460,906 : x
2. Step 2: Convert to fraction form
   210,040/460,906 = 460,906/x
3. Step 3: Cross multiply
   210,040x = 460,906 × 460,906
4. Step 4: Simplify right side
   210,040x = 212,434,340,836
5. Step 5: Solve for x
   x = 212,434,340,836/210,040
6. Step 6: Final answer
   x = 1,011,399.45