Finding the Third Proportional to 102,439 and 155,087.50

Step by Step Solution

1. Step 1: Write the proportion equation
   102,439 : 155,087.50 = 155,087.50 : x
2. Step 2: Convert to fraction form
   102,439/155,087.50 = 155,087.50/x
3. Step 3: Cross multiply
   102,439x = 155,087.50 × 155,087.50
4. Step 4: Simplify right side
   102,439x = 24,052,132,656.25
5. Step 5: Solve for x
   x = 24,052,132,656.25/102,439
6. Step 6: Final answer
   x = 234,794.68