Finding the Third Proportional to 19,690.25 and 42,661

Step by Step Solution

1. Step 1: Write the proportion equation
   19,690.25 : 42,661 = 42,661 : x
2. Step 2: Convert to fraction form
   19,690.25/42,661 = 42,661/x
3. Step 3: Cross multiply
   19,690.25x = 42,661 × 42,661
4. Step 4: Simplify right side
   19,690.25x = 1,819,960,921
5. Step 5: Solve for x
   x = 1,819,960,921/19,690.25
6. Step 6: Final answer
   x = 92,429.55