Finding the Third Proportional to 53,209.69 and 79,353.28

Step by Step Solution

1. Step 1: Write the proportion equation
   53,209.69 : 79,353.28 = 79,353.28 : x
2. Step 2: Convert to fraction form
   53,209.69/79,353.28 = 79,353.28/x
3. Step 3: Cross multiply
   53,209.69x = 79,353.28 × 79,353.28
4. Step 4: Simplify right side
   53,209.69x = 6,296,943,245.14
5. Step 5: Solve for x
   x = 6,296,943,245.14/53,209.69
6. Step 6: Final answer
   x = 118,342.05