Finding the Third Proportional to 112,764 and 242,538

Step by Step Solution

1. Step 1: Write the proportion equation
   112,764 : 242,538 = 242,538 : x
2. Step 2: Convert to fraction form
   112,764/242,538 = 242,538/x
3. Step 3: Cross multiply
   112,764x = 242,538 × 242,538
4. Step 4: Simplify right side
   112,764x = 58,824,681,444
5. Step 5: Solve for x
   x = 58,824,681,444/112,764
6. Step 6: Final answer
   x = 521,661.89