Finding the Third Proportional to 19,851.33 and 42,435.14

Step by Step Solution

1. Step 1: Write the proportion equation
   19,851.33 : 42,435.14 = 42,435.14 : x
2. Step 2: Convert to fraction form
   19,851.33/42,435.14 = 42,435.14/x
3. Step 3: Cross multiply
   19,851.33x = 42,435.14 × 42,435.14
4. Step 4: Simplify right side
   19,851.33x = 1,800,741,159.86
5. Step 5: Solve for x
   x = 1,800,741,159.86/19,851.33
6. Step 6: Final answer
   x = 90,711.37