Finding the Third Proportional to 111,132 and 243,342

Step by Step Solution

1. Step 1: Write the proportion equation
   111,132 : 243,342 = 243,342 : x
2. Step 2: Convert to fraction form
   111,132/243,342 = 243,342/x
3. Step 3: Cross multiply
   111,132x = 243,342 × 243,342
4. Step 4: Simplify right side
   111,132x = 59,215,328,964
5. Step 5: Solve for x
   x = 59,215,328,964/111,132
6. Step 6: Final answer
   x = 532,837.79