Finding the Third Proportional to 30,785.06 and 67,409.72

Step by Step Solution

1. Step 1: Write the proportion equation
   30,785.06 : 67,409.72 = 67,409.72 : x
2. Step 2: Convert to fraction form
   30,785.06/67,409.72 = 67,409.72/x
3. Step 3: Cross multiply
   30,785.06x = 67,409.72 × 67,409.72
4. Step 4: Simplify right side
   30,785.06x = 4,544,070,181.95
5. Step 5: Solve for x
   x = 4,544,070,181.95/30,785.06
6. Step 6: Final answer
   x = 147,606.33