Finding the Third Proportional to 171,687 and 265,837.50

Step by Step Solution

1. Step 1: Write the proportion equation
   171,687 : 265,837.50 = 265,837.50 : x
2. Step 2: Convert to fraction form
   171,687/265,837.50 = 265,837.50/x
3. Step 3: Cross multiply
   171,687x = 265,837.50 × 265,837.50
4. Step 4: Simplify right side
   171,687x = 70,669,576,406.25
5. Step 5: Solve for x
   x = 70,669,576,406.25/171,687
6. Step 6: Final answer
   x = 411,618.68