Finding the Third Proportional to 403,396 and 885,510

Step by Step Solution

1. Step 1: Write the proportion equation
   403,396 : 885,510 = 885,510 : x
2. Step 2: Convert to fraction form
   403,396/885,510 = 885,510/x
3. Step 3: Cross multiply
   403,396x = 885,510 × 885,510
4. Step 4: Simplify right side
   403,396x = 784,127,960,100
5. Step 5: Solve for x
   x = 784,127,960,100/403,396
6. Step 6: Final answer
   x = 1,943,816.89