Finding the Third Proportional to 30,908.81 and 55,436.06

Step by Step Solution

1. Step 1: Write the proportion equation
   30,908.81 : 55,436.06 = 55,436.06 : x
2. Step 2: Convert to fraction form
   30,908.81/55,436.06 = 55,436.06/x
3. Step 3: Cross multiply
   30,908.81x = 55,436.06 × 55,436.06
4. Step 4: Simplify right side
   30,908.81x = 3,073,157,025.50
5. Step 5: Solve for x
   x = 3,073,157,025.50/30,908.81
6. Step 6: Final answer
   x = 99,426.56