Finding the Third Proportional to 30,807 and 64,341

Step by Step Solution

1. Step 1: Write the proportion equation
   30,807 : 64,341 = 64,341 : x
2. Step 2: Convert to fraction form
   30,807/64,341 = 64,341/x
3. Step 3: Cross multiply
   30,807x = 64,341 × 64,341
4. Step 4: Simplify right side
   30,807x = 4,139,764,281
5. Step 5: Solve for x
   x = 4,139,764,281/30,807
6. Step 6: Final answer
   x = 134,377.39