Finding the Third Proportional to 30,931.24 and 67,774.22

Step by Step Solution

1. Step 1: Write the proportion equation
   30,931.24 : 67,774.22 = 67,774.22 : x
2. Step 2: Convert to fraction form
   30,931.24/67,774.22 = 67,774.22/x
3. Step 3: Cross multiply
   30,931.24x = 67,774.22 × 67,774.22
4. Step 4: Simplify right side
   30,931.24x = 4,593,344,727.17
5. Step 5: Solve for x
   x = 4,593,344,727.17/30,931.24
6. Step 6: Final answer
   x = 148,501.79