Finding the Third Proportional to 22,156 and 30,621

Step by Step Solution

1. Step 1: Write the proportion equation
   22,156 : 30,621 = 30,621 : x
2. Step 2: Convert to fraction form
   22,156/30,621 = 30,621/x
3. Step 3: Cross multiply
   22,156x = 30,621 × 30,621
4. Step 4: Simplify right side
   22,156x = 937,645,641
5. Step 5: Solve for x
   x = 937,645,641/22,156
6. Step 6: Final answer
   x = 42,320.17