Finding the Third Proportional to 30,959.25 and 67,851.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,959.25 : 67,851.50 = 67,851.50 : x
2. Step 2: Convert to fraction form
   30,959.25/67,851.50 = 67,851.50/x
3. Step 3: Cross multiply
   30,959.25x = 67,851.50 × 67,851.50
4. Step 4: Simplify right side
   30,959.25x = 4,603,826,052.25
5. Step 5: Solve for x
   x = 4,603,826,052.25/30,959.25
6. Step 6: Final answer
   x = 148,705.99