Finding the Third Proportional to 19,640.25 and 42,695.63

Step by Step Solution

1. Step 1: Write the proportion equation
   19,640.25 : 42,695.63 = 42,695.63 : x
2. Step 2: Convert to fraction form
   19,640.25/42,695.63 = 42,695.63/x
3. Step 3: Cross multiply
   19,640.25x = 42,695.63 × 42,695.63
4. Step 4: Simplify right side
   19,640.25x = 1,822,916,394.14
5. Step 5: Solve for x
   x = 1,822,916,394.14/19,640.25
6. Step 6: Final answer
   x = 92,815.34