Finding the Third Proportional to 19,217.25 and 42,136.45

Step by Step Solution

1. Step 1: Write the proportion equation
   19,217.25 : 42,136.45 = 42,136.45 : x
2. Step 2: Convert to fraction form
   19,217.25/42,136.45 = 42,136.45/x
3. Step 3: Cross multiply
   19,217.25x = 42,136.45 × 42,136.45
4. Step 4: Simplify right side
   19,217.25x = 1,775,480,681.96
5. Step 5: Solve for x
   x = 1,775,480,681.96/19,217.25
6. Step 6: Final answer
   x = 92,389.95