Finding the Third Proportional to 111,335.50 and 242,651

Step by Step Solution

1. Step 1: Write the proportion equation
   111,335.50 : 242,651 = 242,651 : x
2. Step 2: Convert to fraction form
   111,335.50/242,651 = 242,651/x
3. Step 3: Cross multiply
   111,335.50x = 242,651 × 242,651
4. Step 4: Simplify right side
   111,335.50x = 58,879,507,801
5. Step 5: Solve for x
   x = 58,879,507,801/111,335.50
6. Step 6: Final answer
   x = 528,847.56