Finding the Third Proportional to 142,870.50 and 226,039.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,870.50 : 226,039.50 = 226,039.50 : x
2. Step 2: Convert to fraction form
   142,870.50/226,039.50 = 226,039.50/x
3. Step 3: Cross multiply
   142,870.50x = 226,039.50 × 226,039.50
4. Step 4: Simplify right side
   142,870.50x = 51,093,855,560.25
5. Step 5: Solve for x
   x = 51,093,855,560.25/142,870.50
6. Step 6: Final answer
   x = 357,623.55