Finding the Third Proportional to 28,608.19 and 68,412.09

Step by Step Solution

1. Step 1: Write the proportion equation
   28,608.19 : 68,412.09 = 68,412.09 : x
2. Step 2: Convert to fraction form
   28,608.19/68,412.09 = 68,412.09/x
3. Step 3: Cross multiply
   28,608.19x = 68,412.09 × 68,412.09
4. Step 4: Simplify right side
   28,608.19x = 4,680,214,571.26
5. Step 5: Solve for x
   x = 4,680,214,571.26/28,608.19
6. Step 6: Final answer
   x = 163,597.03