Finding the Third Proportional to 30,821.96 and 67,352.77

Step by Step Solution

1. Step 1: Write the proportion equation
   30,821.96 : 67,352.77 = 67,352.77 : x
2. Step 2: Convert to fraction form
   30,821.96/67,352.77 = 67,352.77/x
3. Step 3: Cross multiply
   30,821.96x = 67,352.77 × 67,352.77
4. Step 4: Simplify right side
   30,821.96x = 4,536,395,037.34
5. Step 5: Solve for x
   x = 4,536,395,037.34/30,821.96
6. Step 6: Final answer
   x = 147,180.60