Finding the Third Proportional to 22,350 and 30,780

Step by Step Solution

1. Step 1: Write the proportion equation
   22,350 : 30,780 = 30,780 : x
2. Step 2: Convert to fraction form
   22,350/30,780 = 30,780/x
3. Step 3: Cross multiply
   22,350x = 30,780 × 30,780
4. Step 4: Simplify right side
   22,350x = 947,408,400
5. Step 5: Solve for x
   x = 947,408,400/22,350
6. Step 6: Final answer
   x = 42,389.64