Finding the Third Proportional to 13,397.06 and 28,639.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,397.06 : 28,639.31 = 28,639.31 : x
2. Step 2: Convert to fraction form
   13,397.06/28,639.31 = 28,639.31/x
3. Step 3: Cross multiply
   13,397.06x = 28,639.31 × 28,639.31
4. Step 4: Simplify right side
   13,397.06x = 820,210,220.47
5. Step 5: Solve for x
   x = 820,210,220.47/13,397.06
6. Step 6: Final answer
   x = 61,223.14