Finding the Third Proportional to 19,505.81 and 42,816.38

Step by Step Solution

1. Step 1: Write the proportion equation
   19,505.81 : 42,816.38 = 42,816.38 : x
2. Step 2: Convert to fraction form
   19,505.81/42,816.38 = 42,816.38/x
3. Step 3: Cross multiply
   19,505.81x = 42,816.38 × 42,816.38
4. Step 4: Simplify right side
   19,505.81x = 1,833,241,968.14
5. Step 5: Solve for x
   x = 1,833,241,968.14/19,505.81
6. Step 6: Final answer
   x = 93,984.39