Finding the Third Proportional to 16,891.88 and 39,146.63

Step by Step Solution

1. Step 1: Write the proportion equation
   16,891.88 : 39,146.63 = 39,146.63 : x
2. Step 2: Convert to fraction form
   16,891.88/39,146.63 = 39,146.63/x
3. Step 3: Cross multiply
   16,891.88x = 39,146.63 × 39,146.63
4. Step 4: Simplify right side
   16,891.88x = 1,532,458,248.89
5. Step 5: Solve for x
   x = 1,532,458,248.89/16,891.88
6. Step 6: Final answer
   x = 90,721.62