Finding the Third Proportional to 30,868 and 64,156

Step by Step Solution

1. Step 1: Write the proportion equation
   30,868 : 64,156 = 64,156 : x
2. Step 2: Convert to fraction form
   30,868/64,156 = 64,156/x
3. Step 3: Cross multiply
   30,868x = 64,156 × 64,156
4. Step 4: Simplify right side
   30,868x = 4,115,992,336
5. Step 5: Solve for x
   x = 4,115,992,336/30,868
6. Step 6: Final answer
   x = 133,341.72