Finding the Third Proportional to 112,630 and 242,648

Step by Step Solution

1. Step 1: Write the proportion equation
   112,630 : 242,648 = 242,648 : x
2. Step 2: Convert to fraction form
   112,630/242,648 = 242,648/x
3. Step 3: Cross multiply
   112,630x = 242,648 × 242,648
4. Step 4: Simplify right side
   112,630x = 58,878,051,904
5. Step 5: Solve for x
   x = 58,878,051,904/112,630
6. Step 6: Final answer
   x = 522,756.39