Finding the Third Proportional to 111,748 and 243,176

Step by Step Solution

1. Step 1: Write the proportion equation
   111,748 : 243,176 = 243,176 : x
2. Step 2: Convert to fraction form
   111,748/243,176 = 243,176/x
3. Step 3: Cross multiply
   111,748x = 243,176 × 243,176
4. Step 4: Simplify right side
   111,748x = 59,134,566,976
5. Step 5: Solve for x
   x = 59,134,566,976/111,748
6. Step 6: Final answer
   x = 529,177.86