Finding the Third Proportional to 171,666 and 262,606.50

Step by Step Solution

1. Step 1: Write the proportion equation
   171,666 : 262,606.50 = 262,606.50 : x
2. Step 2: Convert to fraction form
   171,666/262,606.50 = 262,606.50/x
3. Step 3: Cross multiply
   171,666x = 262,606.50 × 262,606.50
4. Step 4: Simplify right side
   171,666x = 68,962,173,842.25
5. Step 5: Solve for x
   x = 68,962,173,842.25/171,666
6. Step 6: Final answer
   x = 401,722.96