Finding the Third Proportional to 59,483.81 and 128,768.06

Step by Step Solution

1. Step 1: Write the proportion equation
   59,483.81 : 128,768.06 = 128,768.06 : x
2. Step 2: Convert to fraction form
   59,483.81/128,768.06 = 128,768.06/x
3. Step 3: Cross multiply
   59,483.81x = 128,768.06 × 128,768.06
4. Step 4: Simplify right side
   59,483.81x = 16,581,213,920.00
5. Step 5: Solve for x
   x = 16,581,213,920.00/59,483.81
6. Step 6: Final answer
   x = 278,751.70