Finding the Third Proportional to 22,440 and 30,490

Step by Step Solution

1. Step 1: Write the proportion equation
   22,440 : 30,490 = 30,490 : x
2. Step 2: Convert to fraction form
   22,440/30,490 = 30,490/x
3. Step 3: Cross multiply
   22,440x = 30,490 × 30,490
4. Step 4: Simplify right side
   22,440x = 929,640,100
5. Step 5: Solve for x
   x = 929,640,100/22,440
6. Step 6: Final answer
   x = 41,427.81