Finding the Third Proportional to 111,922.50 and 155,124

Step by Step Solution

1. Step 1: Write the proportion equation
   111,922.50 : 155,124 = 155,124 : x
2. Step 2: Convert to fraction form
   111,922.50/155,124 = 155,124/x
3. Step 3: Cross multiply
   111,922.50x = 155,124 × 155,124
4. Step 4: Simplify right side
   111,922.50x = 24,063,455,376
5. Step 5: Solve for x
   x = 24,063,455,376/111,922.50
6. Step 6: Final answer
   x = 215,001.05