Finding the Third Proportional to 111,942.50 and 155,154

Step by Step Solution

1. Step 1: Write the proportion equation
   111,942.50 : 155,154 = 155,154 : x
2. Step 2: Convert to fraction form
   111,942.50/155,154 = 155,154/x
3. Step 3: Cross multiply
   111,942.50x = 155,154 × 155,154
4. Step 4: Simplify right side
   111,942.50x = 24,072,763,716
5. Step 5: Solve for x
   x = 24,072,763,716/111,942.50
6. Step 6: Final answer
   x = 215,045.79