Finding the Third Proportional to 13,869.56 and 27,739.13

Step by Step Solution

1. Step 1: Write the proportion equation
   13,869.56 : 27,739.13 = 27,739.13 : x
2. Step 2: Convert to fraction form
   13,869.56/27,739.13 = 27,739.13/x
3. Step 3: Cross multiply
   13,869.56x = 27,739.13 × 27,739.13
4. Step 4: Simplify right side
   13,869.56x = 769,459,055.77
5. Step 5: Solve for x
   x = 769,459,055.77/13,869.56
6. Step 6: Final answer
   x = 55,478.25