Finding the Third Proportional to 28,756.50 and 62,128.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,756.50 : 62,128.50 = 62,128.50 : x
2. Step 2: Convert to fraction form
   28,756.50/62,128.50 = 62,128.50/x
3. Step 3: Cross multiply
   28,756.50x = 62,128.50 × 62,128.50
4. Step 4: Simplify right side
   28,756.50x = 3,859,950,512.25
5. Step 5: Solve for x
   x = 3,859,950,512.25/28,756.50
6. Step 6: Final answer
   x = 134,228.80