Finding the Third Proportional to 139,596 and 222,343.50

Step by Step Solution

1. Step 1: Write the proportion equation
   139,596 : 222,343.50 = 222,343.50 : x
2. Step 2: Convert to fraction form
   139,596/222,343.50 = 222,343.50/x
3. Step 3: Cross multiply
   139,596x = 222,343.50 × 222,343.50
4. Step 4: Simplify right side
   139,596x = 49,436,631,992.25
5. Step 5: Solve for x
   x = 49,436,631,992.25/139,596
6. Step 6: Final answer
   x = 354,140.75