Finding the Third Proportional to 215,082 and 325,536

Step by Step Solution

1. Step 1: Write the proportion equation
   215,082 : 325,536 = 325,536 : x
2. Step 2: Convert to fraction form
   215,082/325,536 = 325,536/x
3. Step 3: Cross multiply
   215,082x = 325,536 × 325,536
4. Step 4: Simplify right side
   215,082x = 105,973,687,296
5. Step 5: Solve for x
   x = 105,973,687,296/215,082
6. Step 6: Final answer
   x = 492,712.95