Finding the Third Proportional to 12,821.63 and 28,935.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,821.63 : 28,935.56 = 28,935.56 : x
2. Step 2: Convert to fraction form
   12,821.63/28,935.56 = 28,935.56/x
3. Step 3: Cross multiply
   12,821.63x = 28,935.56 × 28,935.56
4. Step 4: Simplify right side
   12,821.63x = 837,266,777.19
5. Step 5: Solve for x
   x = 837,266,777.19/12,821.63
6. Step 6: Final answer
   x = 65,301.14