Finding the Third Proportional to 156,789 and 238,869

Step by Step Solution

1. Step 1: Write the proportion equation
   156,789 : 238,869 = 238,869 : x
2. Step 2: Convert to fraction form
   156,789/238,869 = 238,869/x
3. Step 3: Cross multiply
   156,789x = 238,869 × 238,869
4. Step 4: Simplify right side
   156,789x = 57,058,399,161
5. Step 5: Solve for x
   x = 57,058,399,161/156,789
6. Step 6: Final answer
   x = 363,918.38