Finding the Third Proportional to 210,128 and 461,080

Step by Step Solution

1. Step 1: Write the proportion equation
   210,128 : 461,080 = 461,080 : x
2. Step 2: Convert to fraction form
   210,128/461,080 = 461,080/x
3. Step 3: Cross multiply
   210,128x = 461,080 × 461,080
4. Step 4: Simplify right side
   210,128x = 212,594,766,400
5. Step 5: Solve for x
   x = 212,594,766,400/210,128
6. Step 6: Final answer
   x = 1,011,739.35