Finding the Third Proportional to 19,556.44 and 42,230.74

Step by Step Solution

1. Step 1: Write the proportion equation
   19,556.44 : 42,230.74 = 42,230.74 : x
2. Step 2: Convert to fraction form
   19,556.44/42,230.74 = 42,230.74/x
3. Step 3: Cross multiply
   19,556.44x = 42,230.74 × 42,230.74
4. Step 4: Simplify right side
   19,556.44x = 1,783,435,585.71
5. Step 5: Solve for x
   x = 1,783,435,585.71/19,556.44
6. Step 6: Final answer
   x = 91,194.30