Finding the Third Proportional to 171,715.50 and 262,672.50

Step by Step Solution

1. Step 1: Write the proportion equation
   171,715.50 : 262,672.50 = 262,672.50 : x
2. Step 2: Convert to fraction form
   171,715.50/262,672.50 = 262,672.50/x
3. Step 3: Cross multiply
   171,715.50x = 262,672.50 × 262,672.50
4. Step 4: Simplify right side
   171,715.50x = 68,996,842,256.25
5. Step 5: Solve for x
   x = 68,996,842,256.25/171,715.50
6. Step 6: Final answer
   x = 401,809.05