Finding the Third Proportional to 9,859 and 14,404.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,859 : 14,404.50 = 14,404.50 : x
2. Step 2: Convert to fraction form
   9,859/14,404.50 = 14,404.50/x
3. Step 3: Cross multiply
   9,859x = 14,404.50 × 14,404.50
4. Step 4: Simplify right side
   9,859x = 207,489,620.25
5. Step 5: Solve for x
   x = 207,489,620.25/9,859
6. Step 6: Final answer
   x = 21,045.71