Finding the Third Proportional to 19,657.69 and 42,435.56

Step by Step Solution

1. Step 1: Write the proportion equation
   19,657.69 : 42,435.56 = 42,435.56 : x
2. Step 2: Convert to fraction form
   19,657.69/42,435.56 = 42,435.56/x
3. Step 3: Cross multiply
   19,657.69x = 42,435.56 × 42,435.56
4. Step 4: Simplify right side
   19,657.69x = 1,800,776,964.69
5. Step 5: Solve for x
   x = 1,800,776,964.69/19,657.69
6. Step 6: Final answer
   x = 91,606.76