Finding the Third Proportional to 210,288 and 461,288.25

Step by Step Solution

1. Step 1: Write the proportion equation
   210,288 : 461,288.25 = 461,288.25 : x
2. Step 2: Convert to fraction form
   210,288/461,288.25 = 461,288.25/x
3. Step 3: Cross multiply
   210,288x = 461,288.25 × 461,288.25
4. Step 4: Simplify right side
   210,288x = 212,786,849,588.06
5. Step 5: Solve for x
   x = 212,786,849,588.06/210,288
6. Step 6: Final answer
   x = 1,011,882.99