Finding the Third Proportional to 19,859.63 and 42,382.13

Step by Step Solution

1. Step 1: Write the proportion equation
   19,859.63 : 42,382.13 = 42,382.13 : x
2. Step 2: Convert to fraction form
   19,859.63/42,382.13 = 42,382.13/x
3. Step 3: Cross multiply
   19,859.63x = 42,382.13 × 42,382.13
4. Step 4: Simplify right side
   19,859.63x = 1,796,244,519.52
5. Step 5: Solve for x
   x = 1,796,244,519.52/19,859.63
6. Step 6: Final answer
   x = 90,447.05