Finding the Third Proportional to 111,172.50 and 171,963

Step by Step Solution

1. Step 1: Write the proportion equation
   111,172.50 : 171,963 = 171,963 : x
2. Step 2: Convert to fraction form
   111,172.50/171,963 = 171,963/x
3. Step 3: Cross multiply
   111,172.50x = 171,963 × 171,963
4. Step 4: Simplify right side
   111,172.50x = 29,571,273,369
5. Step 5: Solve for x
   x = 29,571,273,369/111,172.50
6. Step 6: Final answer
   x = 265,994.50