Finding the Third Proportional to 28,576.50 and 62,686.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,576.50 : 62,686.50 = 62,686.50 : x
2. Step 2: Convert to fraction form
   28,576.50/62,686.50 = 62,686.50/x
3. Step 3: Cross multiply
   28,576.50x = 62,686.50 × 62,686.50
4. Step 4: Simplify right side
   28,576.50x = 3,929,597,282.25
5. Step 5: Solve for x
   x = 3,929,597,282.25/28,576.50
6. Step 6: Final answer
   x = 137,511.50