Finding the Third Proportional to 112,828 and 243,287

Step by Step Solution

1. Step 1: Write the proportion equation
   112,828 : 243,287 = 243,287 : x
2. Step 2: Convert to fraction form
   112,828/243,287 = 243,287/x
3. Step 3: Cross multiply
   112,828x = 243,287 × 243,287
4. Step 4: Simplify right side
   112,828x = 59,188,564,369
5. Step 5: Solve for x
   x = 59,188,564,369/112,828
6. Step 6: Final answer
   x = 524,591.10