Finding the Third Proportional to 21,379.50 and 46,890

Step by Step Solution

1. Step 1: Write the proportion equation
   21,379.50 : 46,890 = 46,890 : x
2. Step 2: Convert to fraction form
   21,379.50/46,890 = 46,890/x
3. Step 3: Cross multiply
   21,379.50x = 46,890 × 46,890
4. Step 4: Simplify right side
   21,379.50x = 2,198,672,100
5. Step 5: Solve for x
   x = 2,198,672,100/21,379.50
6. Step 6: Final answer
   x = 102,840.20