Finding the Third Proportional to 21,435.75 and 47,021.63

Step by Step Solution

1. Step 1: Write the proportion equation
   21,435.75 : 47,021.63 = 47,021.63 : x
2. Step 2: Convert to fraction form
   21,435.75/47,021.63 = 47,021.63/x
3. Step 3: Cross multiply
   21,435.75x = 47,021.63 × 47,021.63
4. Step 4: Simplify right side
   21,435.75x = 2,211,033,217.64
5. Step 5: Solve for x
   x = 2,211,033,217.64/21,435.75
6. Step 6: Final answer
   x = 103,147.00