Finding the Third Proportional to 79,840.69 and 169,416.56

Step by Step Solution

1. Step 1: Write the proportion equation
   79,840.69 : 169,416.56 = 169,416.56 : x
2. Step 2: Convert to fraction form
   79,840.69/169,416.56 = 169,416.56/x
3. Step 3: Cross multiply
   79,840.69x = 169,416.56 × 169,416.56
4. Step 4: Simplify right side
   79,840.69x = 28,701,971,649.32
5. Step 5: Solve for x
   x = 28,701,971,649.32/79,840.69
6. Step 6: Final answer
   x = 359,490.54