Finding the Third Proportional to 111,459 and 243,654

Step by Step Solution

1. Step 1: Write the proportion equation
   111,459 : 243,654 = 243,654 : x
2. Step 2: Convert to fraction form
   111,459/243,654 = 243,654/x
3. Step 3: Cross multiply
   111,459x = 243,654 × 243,654
4. Step 4: Simplify right side
   111,459x = 59,367,271,716
5. Step 5: Solve for x
   x = 59,367,271,716/111,459
6. Step 6: Final answer
   x = 532,637.76