Finding the Third Proportional to 111,898 and 243,471

Step by Step Solution

1. Step 1: Write the proportion equation
   111,898 : 243,471 = 243,471 : x
2. Step 2: Convert to fraction form
   111,898/243,471 = 243,471/x
3. Step 3: Cross multiply
   111,898x = 243,471 × 243,471
4. Step 4: Simplify right side
   111,898x = 59,278,127,841
5. Step 5: Solve for x
   x = 59,278,127,841/111,898
6. Step 6: Final answer
   x = 529,751.45