Finding the Third Proportional to 111,482 and 243,280

Step by Step Solution

1. Step 1: Write the proportion equation
   111,482 : 243,280 = 243,280 : x
2. Step 2: Convert to fraction form
   111,482/243,280 = 243,280/x
3. Step 3: Cross multiply
   111,482x = 243,280 × 243,280
4. Step 4: Simplify right side
   111,482x = 59,185,158,400
5. Step 5: Solve for x
   x = 59,185,158,400/111,482
6. Step 6: Final answer
   x = 530,894.30