Finding the Third Proportional to 19,513.69 and 42,308.16

Step by Step Solution

1. Step 1: Write the proportion equation
   19,513.69 : 42,308.16 = 42,308.16 : x
2. Step 2: Convert to fraction form
   19,513.69/42,308.16 = 42,308.16/x
3. Step 3: Cross multiply
   19,513.69x = 42,308.16 × 42,308.16
4. Step 4: Simplify right side
   19,513.69x = 1,789,980,085.27
5. Step 5: Solve for x
   x = 1,789,980,085.27/19,513.69
6. Step 6: Final answer
   x = 91,729.46