Finding the Third Proportional to 19,365 and 42,418.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,365 : 42,418.50 = 42,418.50 : x
2. Step 2: Convert to fraction form
   19,365/42,418.50 = 42,418.50/x
3. Step 3: Cross multiply
   19,365x = 42,418.50 × 42,418.50
4. Step 4: Simplify right side
   19,365x = 1,799,329,142.25
5. Step 5: Solve for x
   x = 1,799,329,142.25/19,365
6. Step 6: Final answer
   x = 92,916.56