Finding the Third Proportional to 19,351.41 and 42,390.84

Step by Step Solution

1. Step 1: Write the proportion equation
   19,351.41 : 42,390.84 = 42,390.84 : x
2. Step 2: Convert to fraction form
   19,351.41/42,390.84 = 42,390.84/x
3. Step 3: Cross multiply
   19,351.41x = 42,390.84 × 42,390.84
4. Step 4: Simplify right side
   19,351.41x = 1,796,983,633.84
5. Step 5: Solve for x
   x = 1,796,983,633.84/19,351.41
6. Step 6: Final answer
   x = 92,860.62