Finding the Third Proportional to 62,946.56 and 128,800.69

Step by Step Solution

1. Step 1: Write the proportion equation
   62,946.56 : 128,800.69 = 128,800.69 : x
2. Step 2: Convert to fraction form
   62,946.56/128,800.69 = 128,800.69/x
3. Step 3: Cross multiply
   62,946.56x = 128,800.69 × 128,800.69
4. Step 4: Simplify right side
   62,946.56x = 16,589,617,100.47
5. Step 5: Solve for x
   x = 16,589,617,100.47/62,946.56
6. Step 6: Final answer
   x = 263,550.80