Finding the Third Proportional to 13,878 and 22,072.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,878 : 22,072.50 = 22,072.50 : x
2. Step 2: Convert to fraction form
   13,878/22,072.50 = 22,072.50/x
3. Step 3: Cross multiply
   13,878x = 22,072.50 × 22,072.50
4. Step 4: Simplify right side
   13,878x = 487,195,256.25
5. Step 5: Solve for x
   x = 487,195,256.25/13,878
6. Step 6: Final answer
   x = 35,105.58