Finding the Third Proportional to 21,856.50 and 47,290.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,856.50 : 47,290.50 = 47,290.50 : x
2. Step 2: Convert to fraction form
   21,856.50/47,290.50 = 47,290.50/x
3. Step 3: Cross multiply
   21,856.50x = 47,290.50 × 47,290.50
4. Step 4: Simplify right side
   21,856.50x = 2,236,391,390.25
5. Step 5: Solve for x
   x = 2,236,391,390.25/21,856.50
6. Step 6: Final answer
   x = 102,321.57