Finding the Third Proportional to 30,262.50 and 64,694.25

Step by Step Solution

1. Step 1: Write the proportion equation
   30,262.50 : 64,694.25 = 64,694.25 : x
2. Step 2: Convert to fraction form
   30,262.50/64,694.25 = 64,694.25/x
3. Step 3: Cross multiply
   30,262.50x = 64,694.25 × 64,694.25
4. Step 4: Simplify right side
   30,262.50x = 4,185,345,983.06
5. Step 5: Solve for x
   x = 4,185,345,983.06/30,262.50
6. Step 6: Final answer
   x = 138,301.40