Finding the Third Proportional to 111,161 and 243,404

Step by Step Solution

1. Step 1: Write the proportion equation
   111,161 : 243,404 = 243,404 : x
2. Step 2: Convert to fraction form
   111,161/243,404 = 243,404/x
3. Step 3: Cross multiply
   111,161x = 243,404 × 243,404
4. Step 4: Simplify right side
   111,161x = 59,245,507,216
5. Step 5: Solve for x
   x = 59,245,507,216/111,161
6. Step 6: Final answer
   x = 532,970.26