Finding the Third Proportional to 30,823.50 and 63,103.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,823.50 : 63,103.50 = 63,103.50 : x
2. Step 2: Convert to fraction form
   30,823.50/63,103.50 = 63,103.50/x
3. Step 3: Cross multiply
   30,823.50x = 63,103.50 × 63,103.50
4. Step 4: Simplify right side
   30,823.50x = 3,982,051,712.25
5. Step 5: Solve for x
   x = 3,982,051,712.25/30,823.50
6. Step 6: Final answer
   x = 129,188.82