Finding the Third Proportional to 319,068 and 404,850

Step by Step Solution

1. Step 1: Write the proportion equation
   319,068 : 404,850 = 404,850 : x
2. Step 2: Convert to fraction form
   319,068/404,850 = 404,850/x
3. Step 3: Cross multiply
   319,068x = 404,850 × 404,850
4. Step 4: Simplify right side
   319,068x = 163,903,522,500
5. Step 5: Solve for x
   x = 163,903,522,500/319,068
6. Step 6: Final answer
   x = 513,694.64