Finding the Third Proportional to 19,481.63 and 42,378.75

Step by Step Solution

1. Step 1: Write the proportion equation
   19,481.63 : 42,378.75 = 42,378.75 : x
2. Step 2: Convert to fraction form
   19,481.63/42,378.75 = 42,378.75/x
3. Step 3: Cross multiply
   19,481.63x = 42,378.75 × 42,378.75
4. Step 4: Simplify right side
   19,481.63x = 1,795,958,451.56
5. Step 5: Solve for x
   x = 1,795,958,451.56/19,481.63
6. Step 6: Final answer
   x = 92,187.30