Finding the Third Proportional to 19,889.25 and 42,891.75

Step by Step Solution

1. Step 1: Write the proportion equation
   19,889.25 : 42,891.75 = 42,891.75 : x
2. Step 2: Convert to fraction form
   19,889.25/42,891.75 = 42,891.75/x
3. Step 3: Cross multiply
   19,889.25x = 42,891.75 × 42,891.75
4. Step 4: Simplify right side
   19,889.25x = 1,839,702,218.06
5. Step 5: Solve for x
   x = 1,839,702,218.06/19,889.25
6. Step 6: Final answer
   x = 92,497.31