Finding the Third Proportional to 238,715 and 334,636

Step by Step Solution

1. Step 1: Write the proportion equation
   238,715 : 334,636 = 334,636 : x
2. Step 2: Convert to fraction form
   238,715/334,636 = 334,636/x
3. Step 3: Cross multiply
   238,715x = 334,636 × 334,636
4. Step 4: Simplify right side
   238,715x = 111,981,252,496
5. Step 5: Solve for x
   x = 111,981,252,496/238,715
6. Step 6: Final answer
   x = 469,100.19