Finding the Third Proportional to 15,872.63 and 33,856.31

Step by Step Solution

1. Step 1: Write the proportion equation
   15,872.63 : 33,856.31 = 33,856.31 : x
2. Step 2: Convert to fraction form
   15,872.63/33,856.31 = 33,856.31/x
3. Step 3: Cross multiply
   15,872.63x = 33,856.31 × 33,856.31
4. Step 4: Simplify right side
   15,872.63x = 1,146,249,896.10
5. Step 5: Solve for x
   x = 1,146,249,896.10/15,872.63
6. Step 6: Final answer
   x = 72,215.52