Finding the Third Proportional to 490,728 and 695,902.50

Step by Step Solution

1. Step 1: Write the proportion equation
   490,728 : 695,902.50 = 695,902.50 : x
2. Step 2: Convert to fraction form
   490,728/695,902.50 = 695,902.50/x
3. Step 3: Cross multiply
   490,728x = 695,902.50 × 695,902.50
4. Step 4: Simplify right side
   490,728x = 484,280,289,506.25
5. Step 5: Solve for x
   x = 484,280,289,506.25/490,728
6. Step 6: Final answer
   x = 986,860.93