Finding the Third Proportional to 21,405.75 and 46,105.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,405.75 : 46,105.50 = 46,105.50 : x
2. Step 2: Convert to fraction form
   21,405.75/46,105.50 = 46,105.50/x
3. Step 3: Cross multiply
   21,405.75x = 46,105.50 × 46,105.50
4. Step 4: Simplify right side
   21,405.75x = 2,125,717,130.25
5. Step 5: Solve for x
   x = 2,125,717,130.25/21,405.75
6. Step 6: Final answer
   x = 99,305.89