Finding the Third Proportional to 216,560 and 333,298

Step by Step Solution

1. Step 1: Write the proportion equation
   216,560 : 333,298 = 333,298 : x
2. Step 2: Convert to fraction form
   216,560/333,298 = 333,298/x
3. Step 3: Cross multiply
   216,560x = 333,298 × 333,298
4. Step 4: Simplify right side
   216,560x = 111,087,556,804
5. Step 5: Solve for x
   x = 111,087,556,804/216,560
6. Step 6: Final answer
   x = 512,964.34