Finding the Third Proportional to 171,915 and 265,648.50

Step by Step Solution

1. Step 1: Write the proportion equation
   171,915 : 265,648.50 = 265,648.50 : x
2. Step 2: Convert to fraction form
   171,915/265,648.50 = 265,648.50/x
3. Step 3: Cross multiply
   171,915x = 265,648.50 × 265,648.50
4. Step 4: Simplify right side
   171,915x = 70,569,125,552.25
5. Step 5: Solve for x
   x = 70,569,125,552.25/171,915
6. Step 6: Final answer
   x = 410,488.47