Finding the Third Proportional to 321,934.50 and 699,222

Step by Step Solution

1. Step 1: Write the proportion equation
   321,934.50 : 699,222 = 699,222 : x
2. Step 2: Convert to fraction form
   321,934.50/699,222 = 699,222/x
3. Step 3: Cross multiply
   321,934.50x = 699,222 × 699,222
4. Step 4: Simplify right side
   321,934.50x = 488,911,405,284
5. Step 5: Solve for x
   x = 488,911,405,284/321,934.50
6. Step 6: Final answer
   x = 1,518,667.32