Finding the Third Proportional to 42,103 and 92,990

Step by Step Solution

1. Step 1: Write the proportion equation
   42,103 : 92,990 = 92,990 : x
2. Step 2: Convert to fraction form
   42,103/92,990 = 92,990/x
3. Step 3: Cross multiply
   42,103x = 92,990 × 92,990
4. Step 4: Simplify right side
   42,103x = 8,647,140,100
5. Step 5: Solve for x
   x = 8,647,140,100/42,103
6. Step 6: Final answer
   x = 205,380.62