Finding the Third Proportional to 45,589.50 and 68,991.75

Step by Step Solution

1. Step 1: Write the proportion equation
   45,589.50 : 68,991.75 = 68,991.75 : x
2. Step 2: Convert to fraction form
   45,589.50/68,991.75 = 68,991.75/x
3. Step 3: Cross multiply
   45,589.50x = 68,991.75 × 68,991.75
4. Step 4: Simplify right side
   45,589.50x = 4,759,861,568.06
5. Step 5: Solve for x
   x = 4,759,861,568.06/45,589.50
6. Step 6: Final answer
   x = 104,406.97