Finding the Third Proportional to 135,462 and 210,949.50

Step by Step Solution

1. Step 1: Write the proportion equation
   135,462 : 210,949.50 = 210,949.50 : x
2. Step 2: Convert to fraction form
   135,462/210,949.50 = 210,949.50/x
3. Step 3: Cross multiply
   135,462x = 210,949.50 × 210,949.50
4. Step 4: Simplify right side
   135,462x = 44,499,691,550.25
5. Step 5: Solve for x
   x = 44,499,691,550.25/135,462
6. Step 6: Final answer
   x = 328,503.13