Finding the Third Proportional to 19,603 and 42,446

Step by Step Solution

1. Step 1: Write the proportion equation
   19,603 : 42,446 = 42,446 : x
2. Step 2: Convert to fraction form
   19,603/42,446 = 42,446/x
3. Step 3: Cross multiply
   19,603x = 42,446 × 42,446
4. Step 4: Simplify right side
   19,603x = 1,801,662,916
5. Step 5: Solve for x
   x = 1,801,662,916/19,603
6. Step 6: Final answer
   x = 91,907.51