Finding the Third Proportional to 682,981.50 and 986,710.50

Step by Step Solution

1. Step 1: Write the proportion equation
   682,981.50 : 986,710.50 = 986,710.50 : x
2. Step 2: Convert to fraction form
   682,981.50/986,710.50 = 986,710.50/x
3. Step 3: Cross multiply
   682,981.50x = 986,710.50 × 986,710.50
4. Step 4: Simplify right side
   682,981.50x = 973,597,610,810.25
5. Step 5: Solve for x
   x = 973,597,610,810.25/682,981.50
6. Step 6: Final answer
   x = 1,425,510.96