Finding the Third Proportional to 42,028 and 61,806

Step by Step Solution

1. Step 1: Write the proportion equation
   42,028 : 61,806 = 61,806 : x
2. Step 2: Convert to fraction form
   42,028/61,806 = 61,806/x
3. Step 3: Cross multiply
   42,028x = 61,806 × 61,806
4. Step 4: Simplify right side
   42,028x = 3,819,981,636
5. Step 5: Solve for x
   x = 3,819,981,636/42,028
6. Step 6: Final answer
   x = 90,891.35