Finding the Third Proportional to 19,440.14 and 42,646.78

Step by Step Solution

1. Step 1: Write the proportion equation
   19,440.14 : 42,646.78 = 42,646.78 : x
2. Step 2: Convert to fraction form
   19,440.14/42,646.78 = 42,646.78/x
3. Step 3: Cross multiply
   19,440.14x = 42,646.78 × 42,646.78
4. Step 4: Simplify right side
   19,440.14x = 1,818,747,950.99
5. Step 5: Solve for x
   x = 1,818,747,950.99/19,440.14
6. Step 6: Final answer
   x = 93,556.32