Finding the Third Proportional to 669,648 and 1,010,510.25

Step by Step Solution

1. Step 1: Write the proportion equation
   669,648 : 1,010,510.25 = 1,010,510.25 : x
2. Step 2: Convert to fraction form
   669,648/1,010,510.25 = 1,010,510.25/x
3. Step 3: Cross multiply
   669,648x = 1,010,510.25 × 1,010,510.25
4. Step 4: Simplify right side
   669,648x = 1,021,130,965,355.06
5. Step 5: Solve for x
   x = 1,021,130,965,355.06/669,648
6. Step 6: Final answer
   x = 1,524,877.20