Finding the Third Proportional to 21,142.69 and 46,659.38

Step by Step Solution

1. Step 1: Write the proportion equation
   21,142.69 : 46,659.38 = 46,659.38 : x
2. Step 2: Convert to fraction form
   21,142.69/46,659.38 = 46,659.38/x
3. Step 3: Cross multiply
   21,142.69x = 46,659.38 × 46,659.38
4. Step 4: Simplify right side
   21,142.69x = 2,177,097,275.39
5. Step 5: Solve for x
   x = 2,177,097,275.39/21,142.69
6. Step 6: Final answer
   x = 102,971.64