Finding the Third Proportional to 111,492 and 242,665.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,492 : 242,665.50 = 242,665.50 : x
2. Step 2: Convert to fraction form
   111,492/242,665.50 = 242,665.50/x
3. Step 3: Cross multiply
   111,492x = 242,665.50 × 242,665.50
4. Step 4: Simplify right side
   111,492x = 58,886,544,890.25
5. Step 5: Solve for x
   x = 58,886,544,890.25/111,492
6. Step 6: Final answer
   x = 528,168.34