Finding the Third Proportional to 13,218.38 and 28,614.63

Step by Step Solution

1. Step 1: Write the proportion equation
   13,218.38 : 28,614.63 = 28,614.63 : x
2. Step 2: Convert to fraction form
   13,218.38/28,614.63 = 28,614.63/x
3. Step 3: Cross multiply
   13,218.38x = 28,614.63 × 28,614.63
4. Step 4: Simplify right side
   13,218.38x = 818,796,763.89
5. Step 5: Solve for x
   x = 818,796,763.89/13,218.38
6. Step 6: Final answer
   x = 61,943.83