Finding the Third Proportional to 19,172 and 42,808

Step by Step Solution

1. Step 1: Write the proportion equation
   19,172 : 42,808 = 42,808 : x
2. Step 2: Convert to fraction form
   19,172/42,808 = 42,808/x
3. Step 3: Cross multiply
   19,172x = 42,808 × 42,808
4. Step 4: Simplify right side
   19,172x = 1,832,524,864
5. Step 5: Solve for x
   x = 1,832,524,864/19,172
6. Step 6: Final answer
   x = 95,583.40