Finding the Third Proportional to 19,562.25 and 42,072.75

Step by Step Solution

1. Step 1: Write the proportion equation
   19,562.25 : 42,072.75 = 42,072.75 : x
2. Step 2: Convert to fraction form
   19,562.25/42,072.75 = 42,072.75/x
3. Step 3: Cross multiply
   19,562.25x = 42,072.75 × 42,072.75
4. Step 4: Simplify right side
   19,562.25x = 1,770,116,292.56
5. Step 5: Solve for x
   x = 1,770,116,292.56/19,562.25
6. Step 6: Final answer
   x = 90,486.33