Finding the Third Proportional to 156,164 and 247,036

Step by Step Solution

1. Step 1: Write the proportion equation
   156,164 : 247,036 = 247,036 : x
2. Step 2: Convert to fraction form
   156,164/247,036 = 247,036/x
3. Step 3: Cross multiply
   156,164x = 247,036 × 247,036
4. Step 4: Simplify right side
   156,164x = 61,026,785,296
5. Step 5: Solve for x
   x = 61,026,785,296/156,164
6. Step 6: Final answer
   x = 390,786.51