Finding the Third Proportional to 21,391.59 and 46,815.47

Step by Step Solution

1. Step 1: Write the proportion equation
   21,391.59 : 46,815.47 = 46,815.47 : x
2. Step 2: Convert to fraction form
   21,391.59/46,815.47 = 46,815.47/x
3. Step 3: Cross multiply
   21,391.59x = 46,815.47 × 46,815.47
4. Step 4: Simplify right side
   21,391.59x = 2,191,688,114.28
5. Step 5: Solve for x
   x = 2,191,688,114.28/21,391.59
6. Step 6: Final answer
   x = 102,455.58