Finding the Third Proportional to 30,605 and 64,884.25

Step by Step Solution

1. Step 1: Write the proportion equation
   30,605 : 64,884.25 = 64,884.25 : x
2. Step 2: Convert to fraction form
   30,605/64,884.25 = 64,884.25/x
3. Step 3: Cross multiply
   30,605x = 64,884.25 × 64,884.25
4. Step 4: Simplify right side
   30,605x = 4,209,965,898.06
5. Step 5: Solve for x
   x = 4,209,965,898.06/30,605
6. Step 6: Final answer
   x = 137,558.11