Finding the Third Proportional to 30,606 and 64,884

Step by Step Solution

1. Step 1: Write the proportion equation
   30,606 : 64,884 = 64,884 : x
2. Step 2: Convert to fraction form
   30,606/64,884 = 64,884/x
3. Step 3: Cross multiply
   30,606x = 64,884 × 64,884
4. Step 4: Simplify right side
   30,606x = 4,209,933,456
5. Step 5: Solve for x
   x = 4,209,933,456/30,606
6. Step 6: Final answer
   x = 137,552.55