Finding the Third Proportional to 100,143 and 155,008.50

Step by Step Solution

1. Step 1: Write the proportion equation
   100,143 : 155,008.50 = 155,008.50 : x
2. Step 2: Convert to fraction form
   100,143/155,008.50 = 155,008.50/x
3. Step 3: Cross multiply
   100,143x = 155,008.50 × 155,008.50
4. Step 4: Simplify right side
   100,143x = 24,027,635,072.25
5. Step 5: Solve for x
   x = 24,027,635,072.25/100,143
6. Step 6: Final answer
   x = 239,933.25