Finding the Third Proportional to 30,521.25 and 62,986.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,521.25 : 62,986.50 = 62,986.50 : x
2. Step 2: Convert to fraction form
   30,521.25/62,986.50 = 62,986.50/x
3. Step 3: Cross multiply
   30,521.25x = 62,986.50 × 62,986.50
4. Step 4: Simplify right side
   30,521.25x = 3,967,299,182.25
5. Step 5: Solve for x
   x = 3,967,299,182.25/30,521.25
6. Step 6: Final answer
   x = 129,984.82