Finding the Third Proportional to 12,929.94 and 30,216.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,929.94 : 30,216.75 = 30,216.75 : x
2. Step 2: Convert to fraction form
   12,929.94/30,216.75 = 30,216.75/x
3. Step 3: Cross multiply
   12,929.94x = 30,216.75 × 30,216.75
4. Step 4: Simplify right side
   12,929.94x = 913,051,980.56
5. Step 5: Solve for x
   x = 913,051,980.56/12,929.94
6. Step 6: Final answer
   x = 70,615.34