Finding the Third Proportional to 19,715.91 and 42,759.56

Step by Step Solution

1. Step 1: Write the proportion equation
   19,715.91 : 42,759.56 = 42,759.56 : x
2. Step 2: Convert to fraction form
   19,715.91/42,759.56 = 42,759.56/x
3. Step 3: Cross multiply
   19,715.91x = 42,759.56 × 42,759.56
4. Step 4: Simplify right side
   19,715.91x = 1,828,380,185.19
5. Step 5: Solve for x
   x = 1,828,380,185.19/19,715.91
6. Step 6: Final answer
   x = 92,736.30