Finding the Third Proportional to 30,630 and 64,932

Step by Step Solution

1. Step 1: Write the proportion equation
   30,630 : 64,932 = 64,932 : x
2. Step 2: Convert to fraction form
   30,630/64,932 = 64,932/x
3. Step 3: Cross multiply
   30,630x = 64,932 × 64,932
4. Step 4: Simplify right side
   30,630x = 4,216,164,624
5. Step 5: Solve for x
   x = 4,216,164,624/30,630
6. Step 6: Final answer
   x = 137,648.21