Finding the Third Proportional to 30,762 and 67,309.88

Step by Step Solution

1. Step 1: Write the proportion equation
   30,762 : 67,309.88 = 67,309.88 : x
2. Step 2: Convert to fraction form
   30,762/67,309.88 = 67,309.88/x
3. Step 3: Cross multiply
   30,762x = 67,309.88 × 67,309.88
4. Step 4: Simplify right side
   30,762x = 4,530,619,272.52
5. Step 5: Solve for x
   x = 4,530,619,272.52/30,762
6. Step 6: Final answer
   x = 147,279.74