Finding the Third Proportional to 111,942 and 155,152

Step by Step Solution

1. Step 1: Write the proportion equation
   111,942 : 155,152 = 155,152 : x
2. Step 2: Convert to fraction form
   111,942/155,152 = 155,152/x
3. Step 3: Cross multiply
   111,942x = 155,152 × 155,152
4. Step 4: Simplify right side
   111,942x = 24,072,143,104
5. Step 5: Solve for x
   x = 24,072,143,104/111,942
6. Step 6: Final answer
   x = 215,041.21