Finding the Third Proportional to 21,196 and 41,858.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,196 : 41,858.50 = 41,858.50 : x
2. Step 2: Convert to fraction form
   21,196/41,858.50 = 41,858.50/x
3. Step 3: Cross multiply
   21,196x = 41,858.50 × 41,858.50
4. Step 4: Simplify right side
   21,196x = 1,752,134,022.25
5. Step 5: Solve for x
   x = 1,752,134,022.25/21,196
6. Step 6: Final answer
   x = 82,663.43