Finding the Third Proportional to 56,578 and 117,805

Step by Step Solution

1. Step 1: Write the proportion equation
   56,578 : 117,805 = 117,805 : x
2. Step 2: Convert to fraction form
   56,578/117,805 = 117,805/x
3. Step 3: Cross multiply
   56,578x = 117,805 × 117,805
4. Step 4: Simplify right side
   56,578x = 13,878,018,025
5. Step 5: Solve for x
   x = 13,878,018,025/56,578
6. Step 6: Final answer
   x = 245,290.01