Finding the Third Proportional to 12,657.09 and 30,456.84

Step by Step Solution

1. Step 1: Write the proportion equation
   12,657.09 : 30,456.84 = 30,456.84 : x
2. Step 2: Convert to fraction form
   12,657.09/30,456.84 = 30,456.84/x
3. Step 3: Cross multiply
   12,657.09x = 30,456.84 × 30,456.84
4. Step 4: Simplify right side
   12,657.09x = 927,619,331.21
5. Step 5: Solve for x
   x = 927,619,331.21/12,657.09
6. Step 6: Final answer
   x = 73,288.49