Finding the Third Proportional to 100,149 and 155,017.50

Step by Step Solution

1. Step 1: Write the proportion equation
   100,149 : 155,017.50 = 155,017.50 : x
2. Step 2: Convert to fraction form
   100,149/155,017.50 = 155,017.50/x
3. Step 3: Cross multiply
   100,149x = 155,017.50 × 155,017.50
4. Step 4: Simplify right side
   100,149x = 24,030,425,306.25
5. Step 5: Solve for x
   x = 24,030,425,306.25/100,149
6. Step 6: Final answer
   x = 239,946.73