Finding the Third Proportional to 111,298 and 243,818

Step by Step Solution

1. Step 1: Write the proportion equation
   111,298 : 243,818 = 243,818 : x
2. Step 2: Convert to fraction form
   111,298/243,818 = 243,818/x
3. Step 3: Cross multiply
   111,298x = 243,818 × 243,818
4. Step 4: Simplify right side
   111,298x = 59,447,217,124
5. Step 5: Solve for x
   x = 59,447,217,124/111,298
6. Step 6: Final answer
   x = 534,126.55