Finding the Third Proportional to 158,889 and 222,682.50

Step by Step Solution

1. Step 1: Write the proportion equation
   158,889 : 222,682.50 = 222,682.50 : x
2. Step 2: Convert to fraction form
   158,889/222,682.50 = 222,682.50/x
3. Step 3: Cross multiply
   158,889x = 222,682.50 × 222,682.50
4. Step 4: Simplify right side
   158,889x = 49,587,495,806.25
5. Step 5: Solve for x
   x = 49,587,495,806.25/158,889
6. Step 6: Final answer
   x = 312,088.92