Finding the Third Proportional to 30,774 and 67,240.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,774 : 67,240.50 = 67,240.50 : x
2. Step 2: Convert to fraction form
   30,774/67,240.50 = 67,240.50/x
3. Step 3: Cross multiply
   30,774x = 67,240.50 × 67,240.50
4. Step 4: Simplify right side
   30,774x = 4,521,284,840.25
5. Step 5: Solve for x
   x = 4,521,284,840.25/30,774
6. Step 6: Final answer
   x = 146,918.98