Finding the Third Proportional to 128,166 and 276,052.50

Step by Step Solution

1. Step 1: Write the proportion equation
   128,166 : 276,052.50 = 276,052.50 : x
2. Step 2: Convert to fraction form
   128,166/276,052.50 = 276,052.50/x
3. Step 3: Cross multiply
   128,166x = 276,052.50 × 276,052.50
4. Step 4: Simplify right side
   128,166x = 76,204,982,756.25
5. Step 5: Solve for x
   x = 76,204,982,756.25/128,166
6. Step 6: Final answer
   x = 594,580.33