Finding the Third Proportional to 152,370 and 323,168

Step by Step Solution

1. Step 1: Write the proportion equation
   152,370 : 323,168 = 323,168 : x
2. Step 2: Convert to fraction form
   152,370/323,168 = 323,168/x
3. Step 3: Cross multiply
   152,370x = 323,168 × 323,168
4. Step 4: Simplify right side
   152,370x = 104,437,556,224
5. Step 5: Solve for x
   x = 104,437,556,224/152,370
6. Step 6: Final answer
   x = 685,420.73