Finding the Third Proportional to 78,602.91 and 169,659.56

Step by Step Solution

1. Step 1: Write the proportion equation
   78,602.91 : 169,659.56 = 169,659.56 : x
2. Step 2: Convert to fraction form
   78,602.91/169,659.56 = 169,659.56/x
3. Step 3: Cross multiply
   78,602.91x = 169,659.56 × 169,659.56
4. Step 4: Simplify right side
   78,602.91x = 28,784,367,147.69
5. Step 5: Solve for x
   x = 28,784,367,147.69/78,602.91
6. Step 6: Final answer
   x = 366,199.78