Finding the Third Proportional to 16,400.81 and 35,928.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,400.81 : 35,928.56 = 35,928.56 : x
2. Step 2: Convert to fraction form
   16,400.81/35,928.56 = 35,928.56/x
3. Step 3: Cross multiply
   16,400.81x = 35,928.56 × 35,928.56
4. Step 4: Simplify right side
   16,400.81x = 1,290,861,603.32
5. Step 5: Solve for x
   x = 1,290,861,603.32/16,400.81
6. Step 6: Final answer
   x = 78,707.17