Finding the Third Proportional to 53,856 and 78,048

Step by Step Solution

1. Step 1: Write the proportion equation
   53,856 : 78,048 = 78,048 : x
2. Step 2: Convert to fraction form
   53,856/78,048 = 78,048/x
3. Step 3: Cross multiply
   53,856x = 78,048 × 78,048
4. Step 4: Simplify right side
   53,856x = 6,091,490,304
5. Step 5: Solve for x
   x = 6,091,490,304/53,856
6. Step 6: Final answer
   x = 113,106.99