Finding the Third Proportional to 30,310.25 and 65,804.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,310.25 : 65,804.50 = 65,804.50 : x
2. Step 2: Convert to fraction form
   30,310.25/65,804.50 = 65,804.50/x
3. Step 3: Cross multiply
   30,310.25x = 65,804.50 × 65,804.50
4. Step 4: Simplify right side
   30,310.25x = 4,330,232,220.25
5. Step 5: Solve for x
   x = 4,330,232,220.25/30,310.25
6. Step 6: Final answer
   x = 142,863.63