Finding the Third Proportional to 319,943 and 700,150

Step by Step Solution

1. Step 1: Write the proportion equation
   319,943 : 700,150 = 700,150 : x
2. Step 2: Convert to fraction form
   319,943/700,150 = 700,150/x
3. Step 3: Cross multiply
   319,943x = 700,150 × 700,150
4. Step 4: Simplify right side
   319,943x = 490,210,022,500
5. Step 5: Solve for x
   x = 490,210,022,500/319,943
6. Step 6: Final answer
   x = 1,532,179.24