Finding the Third Proportional to 170,196.19 and 231,256.69

Step by Step Solution

1. Step 1: Write the proportion equation
   170,196.19 : 231,256.69 = 231,256.69 : x
2. Step 2: Convert to fraction form
   170,196.19/231,256.69 = 231,256.69/x
3. Step 3: Cross multiply
   170,196.19x = 231,256.69 × 231,256.69
4. Step 4: Simplify right side
   170,196.19x = 53,479,655,513.47
5. Step 5: Solve for x
   x = 53,479,655,513.47/170,196.19
6. Step 6: Final answer
   x = 314,223.58