Finding the Third Proportional to 164,630 and 253,786

Step by Step Solution

1. Step 1: Write the proportion equation
   164,630 : 253,786 = 253,786 : x
2. Step 2: Convert to fraction form
   164,630/253,786 = 253,786/x
3. Step 3: Cross multiply
   164,630x = 253,786 × 253,786
4. Step 4: Simplify right side
   164,630x = 64,407,333,796
5. Step 5: Solve for x
   x = 64,407,333,796/164,630
6. Step 6: Final answer
   x = 391,224.77