Finding the Third Proportional to 42,806 and 103,123

Step by Step Solution

1. Step 1: Write the proportion equation
   42,806 : 103,123 = 103,123 : x
2. Step 2: Convert to fraction form
   42,806/103,123 = 103,123/x
3. Step 3: Cross multiply
   42,806x = 103,123 × 103,123
4. Step 4: Simplify right side
   42,806x = 10,634,353,129
5. Step 5: Solve for x
   x = 10,634,353,129/42,806
6. Step 6: Final answer
   x = 248,431.37