Finding the Third Proportional to 30,785.75 and 66,483.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,785.75 : 66,483.50 = 66,483.50 : x
2. Step 2: Convert to fraction form
   30,785.75/66,483.50 = 66,483.50/x
3. Step 3: Cross multiply
   30,785.75x = 66,483.50 × 66,483.50
4. Step 4: Simplify right side
   30,785.75x = 4,420,055,772.25
5. Step 5: Solve for x
   x = 4,420,055,772.25/30,785.75
6. Step 6: Final answer
   x = 143,574.73