Finding the Third Proportional to 13,216.92 and 28,890.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,216.92 : 28,890.42 = 28,890.42 : x
2. Step 2: Convert to fraction form
   13,216.92/28,890.42 = 28,890.42/x
3. Step 3: Cross multiply
   13,216.92x = 28,890.42 × 28,890.42
4. Step 4: Simplify right side
   13,216.92x = 834,656,476.12
5. Step 5: Solve for x
   x = 834,656,476.12/13,216.92
6. Step 6: Final answer
   x = 63,150.59