Finding the Third Proportional to 111,069 and 243,243

Step by Step Solution

1. Step 1: Write the proportion equation
   111,069 : 243,243 = 243,243 : x
2. Step 2: Convert to fraction form
   111,069/243,243 = 243,243/x
3. Step 3: Cross multiply
   111,069x = 243,243 × 243,243
4. Step 4: Simplify right side
   111,069x = 59,167,157,049
5. Step 5: Solve for x
   x = 59,167,157,049/111,069
6. Step 6: Final answer
   x = 532,706.31