Finding the Third Proportional to 112,648 and 243,880

Step by Step Solution

1. Step 1: Write the proportion equation
   112,648 : 243,880 = 243,880 : x
2. Step 2: Convert to fraction form
   112,648/243,880 = 243,880/x
3. Step 3: Cross multiply
   112,648x = 243,880 × 243,880
4. Step 4: Simplify right side
   112,648x = 59,477,454,400
5. Step 5: Solve for x
   x = 59,477,454,400/112,648
6. Step 6: Final answer
   x = 527,993.88