Finding the Third Proportional to 6,440.16 and 13,572.09

Step by Step Solution

1. Step 1: Write the proportion equation
   6,440.16 : 13,572.09 = 13,572.09 : x
2. Step 2: Convert to fraction form
   6,440.16/13,572.09 = 13,572.09/x
3. Step 3: Cross multiply
   6,440.16x = 13,572.09 × 13,572.09
4. Step 4: Simplify right side
   6,440.16x = 184,201,728.76
5. Step 5: Solve for x
   x = 184,201,728.76/6,440.16
6. Step 6: Final answer
   x = 28,602.06