Finding the Third Proportional to 42,778 and 103,056

Step by Step Solution

1. Step 1: Write the proportion equation
   42,778 : 103,056 = 103,056 : x
2. Step 2: Convert to fraction form
   42,778/103,056 = 103,056/x
3. Step 3: Cross multiply
   42,778x = 103,056 × 103,056
4. Step 4: Simplify right side
   42,778x = 10,620,539,136
5. Step 5: Solve for x
   x = 10,620,539,136/42,778
6. Step 6: Final answer
   x = 248,271.05