Finding the Third Proportional to 30,561.05 and 64,448.16

Step by Step Solution

1. Step 1: Write the proportion equation
   30,561.05 : 64,448.16 = 64,448.16 : x
2. Step 2: Convert to fraction form
   30,561.05/64,448.16 = 64,448.16/x
3. Step 3: Cross multiply
   30,561.05x = 64,448.16 × 64,448.16
4. Step 4: Simplify right side
   30,561.05x = 4,153,564,844.02
5. Step 5: Solve for x
   x = 4,153,564,844.02/30,561.05
6. Step 6: Final answer
   x = 135,910.42