Finding the Third Proportional to 13,909 and 30,454

Step by Step Solution

1. Step 1: Write the proportion equation
   13,909 : 30,454 = 30,454 : x
2. Step 2: Convert to fraction form
   13,909/30,454 = 30,454/x
3. Step 3: Cross multiply
   13,909x = 30,454 × 30,454
4. Step 4: Simplify right side
   13,909x = 927,446,116
5. Step 5: Solve for x
   x = 927,446,116/13,909
6. Step 6: Final answer
   x = 66,679.57