Finding the Third Proportional to 19,876.64 and 27,856.83

Step by Step Solution

1. Step 1: Write the proportion equation
   19,876.64 : 27,856.83 = 27,856.83 : x
2. Step 2: Convert to fraction form
   19,876.64/27,856.83 = 27,856.83/x
3. Step 3: Cross multiply
   19,876.64x = 27,856.83 × 27,856.83
4. Step 4: Simplify right side
   19,876.64x = 776,002,873.19
5. Step 5: Solve for x
   x = 776,002,873.19/19,876.64
6. Step 6: Final answer
   x = 39,040.95