Finding the Third Proportional to 419,310 and 905,010

Step by Step Solution

1. Step 1: Write the proportion equation
   419,310 : 905,010 = 905,010 : x
2. Step 2: Convert to fraction form
   419,310/905,010 = 905,010/x
3. Step 3: Cross multiply
   419,310x = 905,010 × 905,010
4. Step 4: Simplify right side
   419,310x = 819,043,100,100
5. Step 5: Solve for x
   x = 819,043,100,100/419,310
6. Step 6: Final answer
   x = 1,953,311.63