Finding the Third Proportional to 54,678 and 113,718.56

Step by Step Solution

1. Step 1: Write the proportion equation
   54,678 : 113,718.56 = 113,718.56 : x
2. Step 2: Convert to fraction form
   54,678/113,718.56 = 113,718.56/x
3. Step 3: Cross multiply
   54,678x = 113,718.56 × 113,718.56
4. Step 4: Simplify right side
   54,678x = 12,931,911,457.07
5. Step 5: Solve for x
   x = 12,931,911,457.07/54,678
6. Step 6: Final answer
   x = 236,510.32