Finding the Third Proportional to 139,933.83 and 210,908.81

Step by Step Solution

1. Step 1: Write the proportion equation
   139,933.83 : 210,908.81 = 210,908.81 : x
2. Step 2: Convert to fraction form
   139,933.83/210,908.81 = 210,908.81/x
3. Step 3: Cross multiply
   139,933.83x = 210,908.81 × 210,908.81
4. Step 4: Simplify right side
   139,933.83x = 44,482,527,190.16
5. Step 5: Solve for x
   x = 44,482,527,190.16/139,933.83
6. Step 6: Final answer
   x = 317,882.59