Finding the Third Proportional to 525,535 and 801,424

Step by Step Solution

1. Step 1: Write the proportion equation
   525,535 : 801,424 = 801,424 : x
2. Step 2: Convert to fraction form
   525,535/801,424 = 801,424/x
3. Step 3: Cross multiply
   525,535x = 801,424 × 801,424
4. Step 4: Simplify right side
   525,535x = 642,280,427,776
5. Step 5: Solve for x
   x = 642,280,427,776/525,535
6. Step 6: Final answer
   x = 1,222,145.87