Finding the Third Proportional to 19,508 and 42,136

Step by Step Solution

1. Step 1: Write the proportion equation
   19,508 : 42,136 = 42,136 : x
2. Step 2: Convert to fraction form
   19,508/42,136 = 42,136/x
3. Step 3: Cross multiply
   19,508x = 42,136 × 42,136
4. Step 4: Simplify right side
   19,508x = 1,775,442,496
5. Step 5: Solve for x
   x = 1,775,442,496/19,508
6. Step 6: Final answer
   x = 91,011.00