Finding the Third Proportional to 5,978.18 and 13,092.89

Step by Step Solution

1. Step 1: Write the proportion equation
   5,978.18 : 13,092.89 = 13,092.89 : x
2. Step 2: Convert to fraction form
   5,978.18/13,092.89 = 13,092.89/x
3. Step 3: Cross multiply
   5,978.18x = 13,092.89 × 13,092.89
4. Step 4: Simplify right side
   5,978.18x = 171,423,784.92
5. Step 5: Solve for x
   x = 171,423,784.92/5,978.18
6. Step 6: Final answer
   x = 28,674.91