Finding the Third Proportional to 20,187.56 and 41,381.72

Step by Step Solution

1. Step 1: Write the proportion equation
   20,187.56 : 41,381.72 = 41,381.72 : x
2. Step 2: Convert to fraction form
   20,187.56/41,381.72 = 41,381.72/x
3. Step 3: Cross multiply
   20,187.56x = 41,381.72 × 41,381.72
4. Step 4: Simplify right side
   20,187.56x = 1,712,446,646.70
5. Step 5: Solve for x
   x = 1,712,446,646.70/20,187.56
6. Step 6: Final answer
   x = 84,826.82