Finding the Third Proportional to 78,929 and 169,090

Step by Step Solution

1. Step 1: Write the proportion equation
   78,929 : 169,090 = 169,090 : x
2. Step 2: Convert to fraction form
   78,929/169,090 = 169,090/x
3. Step 3: Cross multiply
   78,929x = 169,090 × 169,090
4. Step 4: Simplify right side
   78,929x = 28,591,428,100
5. Step 5: Solve for x
   x = 28,591,428,100/78,929
6. Step 6: Final answer
   x = 362,242.37