Finding the Third Proportional to 13,106.81 and 28,400.63

Step by Step Solution

1. Step 1: Write the proportion equation
   13,106.81 : 28,400.63 = 28,400.63 : x
2. Step 2: Convert to fraction form
   13,106.81/28,400.63 = 28,400.63/x
3. Step 3: Cross multiply
   13,106.81x = 28,400.63 × 28,400.63
4. Step 4: Simplify right side
   13,106.81x = 806,595,500.39
5. Step 5: Solve for x
   x = 806,595,500.39/13,106.81
6. Step 6: Final answer
   x = 61,540.17