Finding the Third Proportional to 28,290 and 62,020.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,290 : 62,020.50 = 62,020.50 : x
2. Step 2: Convert to fraction form
   28,290/62,020.50 = 62,020.50/x
3. Step 3: Cross multiply
   28,290x = 62,020.50 × 62,020.50
4. Step 4: Simplify right side
   28,290x = 3,846,542,420.25
5. Step 5: Solve for x
   x = 3,846,542,420.25/28,290
6. Step 6: Final answer
   x = 135,968.27