Finding the Third Proportional to 19,940 and 30,310

Step by Step Solution

1. Step 1: Write the proportion equation
   19,940 : 30,310 = 30,310 : x
2. Step 2: Convert to fraction form
   19,940/30,310 = 30,310/x
3. Step 3: Cross multiply
   19,940x = 30,310 × 30,310
4. Step 4: Simplify right side
   19,940x = 918,696,100
5. Step 5: Solve for x
   x = 918,696,100/19,940
6. Step 6: Final answer
   x = 46,073.02