Finding the Third Proportional to 13,964.91 and 28,920.80

Step by Step Solution

1. Step 1: Write the proportion equation
   13,964.91 : 28,920.80 = 28,920.80 : x
2. Step 2: Convert to fraction form
   13,964.91/28,920.80 = 28,920.80/x
3. Step 3: Cross multiply
   13,964.91x = 28,920.80 × 28,920.80
4. Step 4: Simplify right side
   13,964.91x = 836,412,491.89
5. Step 5: Solve for x
   x = 836,412,491.89/13,964.91
6. Step 6: Final answer
   x = 59,893.89