Finding the Third Proportional to 30,807 and 63,073.69

Step by Step Solution

1. Step 1: Write the proportion equation
   30,807 : 63,073.69 = 63,073.69 : x
2. Step 2: Convert to fraction form
   30,807/63,073.69 = 63,073.69/x
3. Step 3: Cross multiply
   30,807x = 63,073.69 × 63,073.69
4. Step 4: Simplify right side
   30,807x = 3,978,290,054.85
5. Step 5: Solve for x
   x = 3,978,290,054.85/30,807
6. Step 6: Final answer
   x = 129,135.91