Finding the Third Proportional to 19,782 and 30,172

Step by Step Solution

1. Step 1: Write the proportion equation
   19,782 : 30,172 = 30,172 : x
2. Step 2: Convert to fraction form
   19,782/30,172 = 30,172/x
3. Step 3: Cross multiply
   19,782x = 30,172 × 30,172
4. Step 4: Simplify right side
   19,782x = 910,349,584
5. Step 5: Solve for x
   x = 910,349,584/19,782
6. Step 6: Final answer
   x = 46,019.09