Finding the Third Proportional to 19,563.75 and 42,620.63

Step by Step Solution

1. Step 1: Write the proportion equation
   19,563.75 : 42,620.63 = 42,620.63 : x
2. Step 2: Convert to fraction form
   19,563.75/42,620.63 = 42,620.63/x
3. Step 3: Cross multiply
   19,563.75x = 42,620.63 × 42,620.63
4. Step 4: Simplify right side
   19,563.75x = 1,816,517,675.39
5. Step 5: Solve for x
   x = 1,816,517,675.39/19,563.75
6. Step 6: Final answer
   x = 92,851.20