Finding the Third Proportional to 28,290.75 and 62,231.25

Step by Step Solution

1. Step 1: Write the proportion equation
   28,290.75 : 62,231.25 = 62,231.25 : x
2. Step 2: Convert to fraction form
   28,290.75/62,231.25 = 62,231.25/x
3. Step 3: Cross multiply
   28,290.75x = 62,231.25 × 62,231.25
4. Step 4: Simplify right side
   28,290.75x = 3,872,728,476.56
5. Step 5: Solve for x
   x = 3,872,728,476.56/28,290.75
6. Step 6: Final answer
   x = 136,890.27