Finding the Third Proportional to 111,580 and 242,848

Step by Step Solution

1. Step 1: Write the proportion equation
   111,580 : 242,848 = 242,848 : x
2. Step 2: Convert to fraction form
   111,580/242,848 = 242,848/x
3. Step 3: Cross multiply
   111,580x = 242,848 × 242,848
4. Step 4: Simplify right side
   111,580x = 58,975,151,104
5. Step 5: Solve for x
   x = 58,975,151,104/111,580
6. Step 6: Final answer
   x = 528,545.90