Finding the Third Proportional to 111,904 and 243,470

Step by Step Solution

1. Step 1: Write the proportion equation
   111,904 : 243,470 = 243,470 : x
2. Step 2: Convert to fraction form
   111,904/243,470 = 243,470/x
3. Step 3: Cross multiply
   111,904x = 243,470 × 243,470
4. Step 4: Simplify right side
   111,904x = 59,277,640,900
5. Step 5: Solve for x
   x = 59,277,640,900/111,904
6. Step 6: Final answer
   x = 529,718.70