Finding the Third Proportional to 394,164 and 601,090

Step by Step Solution

1. Step 1: Write the proportion equation
   394,164 : 601,090 = 601,090 : x
2. Step 2: Convert to fraction form
   394,164/601,090 = 601,090/x
3. Step 3: Cross multiply
   394,164x = 601,090 × 601,090
4. Step 4: Simplify right side
   394,164x = 361,309,188,100
5. Step 5: Solve for x
   x = 361,309,188,100/394,164
6. Step 6: Final answer
   x = 916,646.85