Finding the Third Proportional to 13,905 and 32,810.25

Step by Step Solution

1. Step 1: Write the proportion equation
   13,905 : 32,810.25 = 32,810.25 : x
2. Step 2: Convert to fraction form
   13,905/32,810.25 = 32,810.25/x
3. Step 3: Cross multiply
   13,905x = 32,810.25 × 32,810.25
4. Step 4: Simplify right side
   13,905x = 1,076,512,505.06
5. Step 5: Solve for x
   x = 1,076,512,505.06/13,905
6. Step 6: Final answer
   x = 77,419.09