Finding the Third Proportional to 19,518.47 and 42,570.56

Step by Step Solution

1. Step 1: Write the proportion equation
   19,518.47 : 42,570.56 = 42,570.56 : x
2. Step 2: Convert to fraction form
   19,518.47/42,570.56 = 42,570.56/x
3. Step 3: Cross multiply
   19,518.47x = 42,570.56 × 42,570.56
4. Step 4: Simplify right side
   19,518.47x = 1,812,252,791.57
5. Step 5: Solve for x
   x = 1,812,252,791.57/19,518.47
6. Step 6: Final answer
   x = 92,848.10