Finding the Third Proportional to 30,210.38 and 64,796.25

Step by Step Solution

1. Step 1: Write the proportion equation
   30,210.38 : 64,796.25 = 64,796.25 : x
2. Step 2: Convert to fraction form
   30,210.38/64,796.25 = 64,796.25/x
3. Step 3: Cross multiply
   30,210.38x = 64,796.25 × 64,796.25
4. Step 4: Simplify right side
   30,210.38x = 4,198,554,014.06
5. Step 5: Solve for x
   x = 4,198,554,014.06/30,210.38
6. Step 6: Final answer
   x = 138,977.22