Finding the Third Proportional to 12,901.78 and 14,488.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,901.78 : 14,488.88 = 14,488.88 : x
2. Step 2: Convert to fraction form
   12,901.78/14,488.88 = 14,488.88/x
3. Step 3: Cross multiply
   12,901.78x = 14,488.88 × 14,488.88
4. Step 4: Simplify right side
   12,901.78x = 209,927,498.77
5. Step 5: Solve for x
   x = 209,927,498.77/12,901.78
6. Step 6: Final answer
   x = 16,271.20