Finding the Third Proportional to 19,481.77 and 42,071.91

Step by Step Solution

1. Step 1: Write the proportion equation
   19,481.77 : 42,071.91 = 42,071.91 : x
2. Step 2: Convert to fraction form
   19,481.77/42,071.91 = 42,071.91/x
3. Step 3: Cross multiply
   19,481.77x = 42,071.91 × 42,071.91
4. Step 4: Simplify right side
   19,481.77x = 1,770,045,295.51
5. Step 5: Solve for x
   x = 1,770,045,295.51/19,481.77
6. Step 6: Final answer
   x = 90,856.51