Finding the Third Proportional to 113,520 and 171,860

Step by Step Solution

1. Step 1: Write the proportion equation
   113,520 : 171,860 = 171,860 : x
2. Step 2: Convert to fraction form
   113,520/171,860 = 171,860/x
3. Step 3: Cross multiply
   113,520x = 171,860 × 171,860
4. Step 4: Simplify right side
   113,520x = 29,535,859,600
5. Step 5: Solve for x
   x = 29,535,859,600/113,520
6. Step 6: Final answer
   x = 260,181.99