Finding the Third Proportional to 159,087 and 222,988.50

Step by Step Solution

1. Step 1: Write the proportion equation
   159,087 : 222,988.50 = 222,988.50 : x
2. Step 2: Convert to fraction form
   159,087/222,988.50 = 222,988.50/x
3. Step 3: Cross multiply
   159,087x = 222,988.50 × 222,988.50
4. Step 4: Simplify right side
   159,087x = 49,723,871,132.25
5. Step 5: Solve for x
   x = 49,723,871,132.25/159,087
6. Step 6: Final answer
   x = 312,557.73