Finding the Third Proportional to 680,197.50 and 1,404,459

Step by Step Solution

1. Step 1: Write the proportion equation
   680,197.50 : 1,404,459 = 1,404,459 : x
2. Step 2: Convert to fraction form
   680,197.50/1,404,459 = 1,404,459/x
3. Step 3: Cross multiply
   680,197.50x = 1,404,459 × 1,404,459
4. Step 4: Simplify right side
   680,197.50x = 1,972,505,082,681
5. Step 5: Solve for x
   x = 1,972,505,082,681/680,197.50
6. Step 6: Final answer
   x = 2,899,900.52