Finding the Third Proportional to 19,591.88 and 28,886.63

Step by Step Solution

1. Step 1: Write the proportion equation
   19,591.88 : 28,886.63 = 28,886.63 : x
2. Step 2: Convert to fraction form
   19,591.88/28,886.63 = 28,886.63/x
3. Step 3: Cross multiply
   19,591.88x = 28,886.63 × 28,886.63
4. Step 4: Simplify right side
   19,591.88x = 834,437,103.89
5. Step 5: Solve for x
   x = 834,437,103.89/19,591.88
6. Step 6: Final answer
   x = 42,590.98