Finding the Third Proportional to 319,900.50 and 700,065

Step by Step Solution

1. Step 1: Write the proportion equation
   319,900.50 : 700,065 = 700,065 : x
2. Step 2: Convert to fraction form
   319,900.50/700,065 = 700,065/x
3. Step 3: Cross multiply
   319,900.50x = 700,065 × 700,065
4. Step 4: Simplify right side
   319,900.50x = 490,091,004,225
5. Step 5: Solve for x
   x = 490,091,004,225/319,900.50
6. Step 6: Final answer
   x = 1,532,010.75