Finding the Third Proportional to 19,634.25 and 42,426.75

Step by Step Solution

1. Step 1: Write the proportion equation
   19,634.25 : 42,426.75 = 42,426.75 : x
2. Step 2: Convert to fraction form
   19,634.25/42,426.75 = 42,426.75/x
3. Step 3: Cross multiply
   19,634.25x = 42,426.75 × 42,426.75
4. Step 4: Simplify right side
   19,634.25x = 1,800,029,115.56
5. Step 5: Solve for x
   x = 1,800,029,115.56/19,634.25
6. Step 6: Final answer
   x = 91,678.02