Finding the Third Proportional to 21,660 and 47,026.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,660 : 47,026.50 = 47,026.50 : x
2. Step 2: Convert to fraction form
   21,660/47,026.50 = 47,026.50/x
3. Step 3: Cross multiply
   21,660x = 47,026.50 × 47,026.50
4. Step 4: Simplify right side
   21,660x = 2,211,491,702.25
5. Step 5: Solve for x
   x = 2,211,491,702.25/21,660
6. Step 6: Final answer
   x = 102,100.26